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What’s the best car (starting) battery for the Vanagon?
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jimf909
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PostPosted: Thu Dec 04, 2025 11:27 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Sodo wrote:


I do wonder if Ford factory replacement batteries are the same as the ones they install in new vehicles. The Ford factory replacement I bought cost $250.


I wonder if batteries with different warranties are actually any different or if the seller is just "pre-charging" for the warranty replacement with the 36 month batteries.

- NAPA 36 month battery = $259.99, +86% more than the 18 month battery
- NAPA 24 month battery = $199.99, +43% more than the 18 month battery
- NAPA 18 month battery = $139.99

Is the 36 month battery 86% better than the 18 month battery, esp. if the warranty is never used? Note: these prices are for Group 48 batteries, NAPA doesn't list 18 month batteries for Group 41 or T5 batteries.

Since I only recall using a battery warranty once, and that was in the lower refund pro-rated portion, I bought the 18 month battery yesterday. Plus, it was $35 off (cyber Monday) so a new group 48 battery for $105 is a pretty good deal if it lasts 36 months. Given the previous battery lasted 9 years I'm betting this will work.

I'll check back in 3 years. Wink

Edit: Battery warranties are like group insurance:
- Owners of cars with healthy charging systems are paying to replace the battery of the owner with the unmaintained jalopy.
- Cool climate battery owners are paying for replacement batteries that live in hot climates.
- Receipt losers are paying for the replacement batteries of receipt savers.

NAPA and Walmart surely have the data.
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Butcher wrote:
This is the main fault with DIY'ers, they get together on these forums and pat themselves on their backs spreading bad information.
Guilty as charged.

Current: 1990 Westy Camper - Bostig RG4, 2wd, manual trans w/Peloquin, NAHT high-top, 280 ah LFP battery, 160 watts solar, Flash Silver, seam rust, bondo, etc., etc.
Past: 1985 Westy Camper - 1.9 wbx, 2wd, manual trans, Merian Brown, (sold after 17 years to Northwesty who converted it to a Syncro).
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kamzcab86
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PostPosted: Thu Dec 04, 2025 11:12 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Sodo wrote:
If the 20% smaller battery cost 20% less, starts the van, and your battery habits don't use up the smaller capacity, and it still has the same lifetime, and easier install,... the T5 is a clearly a better option.


I bought two Everstart Maxx T5's at the same time in 2018, one for my Vanagon and one for my Cabriolet, neither of which are daily drivers. The van's lasted nearly 6 years, the Cabriolet's lasted nearly 7 years. For desert-dwelling vehicles (albeit garaged and put on battery chargers once a month), that's a fantastic service record. I'll take the T5/96R with its easier install/removal and space-saving over a Group 41 any day... and twice on Sunday.

jimf909 wrote:
That AZ heat kills batteries.


Yep; unfortunately. Sad My GTI sits outside, so it has to endure the summer heat plus direct sun. My little 24V electric pontoon boat does too... its big-ass, heavy marine batteries lasted 2 years at the most. The boat is kept covered and under the back seat, it's like a literal oven in the summer. Finally got tired of paying for a new battery every year, so switched it over to LFP when I did the aux battery in the Westy (LiTime had a 4-in-a-box deal)... compact, lightweight batteries with the same amp hours as the heavy lead acid. Thanks to the LFPs' size and weight, I can easily remove them from the boat, which I did at the start of summer and put the charger on them just a couple times. They're still going strong and about to be reinstalled for the urban boating season.
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Sodo
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PostPosted: Thu Dec 04, 2025 9:29 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

do.dah wrote:
I don't find removing replacing/replacing my 41 all that difficult


Removing the 41 with a lift-strap, and the extra plastic cut off, is "easy".
Being a "tool guy" I find cutting plastic...... "easy".
So I'm not too inclined to put in a smaller battery.

What's not easy, is paying $189+WA 10%tx = $209

If the 20% smaller battery cost 20% less, starts the van, and your battery habits don't use up the smaller capacity, and it still has the same lifetime, and easier install,... the T5 is a clearly a better option.

Also note that when they warranty your battery, the clock does not restart.
So if your battery lasted 23 months, and they warranty it, your next battery is only warranted for the remaining one month.

I had a Kubota battery that lasted about 15 years.
My original Nissan battery in 1989, lasted 11 years.
My original Ford Motorcraft battery, 2013, lasted 9 years.
Batteries are built for the lifetime specified by the OEM.

I do wonder if Ford factory replacement batteries are the same as the ones they install in new vehicles. The Ford factory replacement I bought cost $250.
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'87 Tintop, EJ25, cooled filtered (original) gearbox
....KTMs, GasGas, SPOT mtb

All Vanagons should do this:
Add direct starter-to-chassis cable THEN delete ground strap at front transaxle mount.
The best time to do this mod was in 2010. The second best time is TODAY.
If your starter is slow, this is MORE important.
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do.dah
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PostPosted: Wed Dec 03, 2025 10:05 pm    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Or, ya could've kept, or asked for the factory lifting strap that the 41's usta come with, cut out the middle of the strap and slip them down the sides of the batt so ya can close the lid when ya ain't lifting or lowering the batt?

I don't find removing replacing/replacing my 41 all that difficult,,
but, yah, I'm thinking my next batt is gonna be one of the t5's, just cuz....
HATE HATE HATE PAYING $$$'S FOR A PLASTIC BOX CONTAINING SOME LEAD AND ACID!!!! HATE!!

Sodo wrote:
The NAPA group41 drops right in if you cut that unnecessary plastic off.
Here's using a "multitool" oscillating cutter. It was fast.
But a hacksaw cuts plastic real easy too.

Its faster to cut it off than fight with it.

...
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PostPosted: Wed Dec 03, 2025 9:33 pm    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

kamzcab86 wrote:
my GTI requires replacement every 3 years like clockwork, so we'll see if the 4-year thing pans out.

That AZ heat kills batteries. Just today I replaced the battery in my 2012 CC after 9+ years of excellent service in the cool PNW. I’m even going to keep that 9 year old battery in service as a starting battery for a generator.

The average daily average temp where I live is 51 degrees which definitely prolongs battery life according to Battery University:

"This means that a VRLA battery for stationary applications specified to last for 10 years at 25°C (77°F) would only live 5 years if continuously exposed to 33°C (92°F) and 30 months if kept at a constant desert temperature of 41°C (106°F). Once the battery is damaged by heat, the capacity cannot be restored."
https://www.batteryuniversity.com/article/bu-806a-how-heat-and-loading-affect-battery-life
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Butcher wrote:
This is the main fault with DIY'ers, they get together on these forums and pat themselves on their backs spreading bad information.
Guilty as charged.

Current: 1990 Westy Camper - Bostig RG4, 2wd, manual trans w/Peloquin, NAHT high-top, 280 ah LFP battery, 160 watts solar, Flash Silver, seam rust, bondo, etc., etc.
Past: 1985 Westy Camper - 1.9 wbx, 2wd, manual trans, Merian Brown, (sold after 17 years to Northwesty who converted it to a Syncro).
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Sodo
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PostPosted: Wed Dec 03, 2025 9:04 pm    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Image may have been reduced in size. Click image to view fullscreen.

The NAPA group41 drops right in if you cut that unnecessary plastic off.
Here's using a "multitool" oscillating cutter. It was fast.
But a hacksaw cuts plastic real easy too.

Its faster to cut it off than fight with it.

Image may have been reduced in size. Click image to view fullscreen.
Find a strap to wrap around the battery before you drop it into the box.
Then you can lift it out easily.
Sometimes that day comes sooner than you envision.
But in any case you will be happy to have added it.
This flat strap is just tied in a knot.

=====================

Crooked Designer wrote:
considering moving the battery to the back as well. Would allow me to install a new and much much shorter positive wire.

Probably better to learn "The voltage drop test" so you can evaluate the current condition of your existing positive wire.

I tested mine and it showed a voltage drop of "0.070volts".
There is no benefit to the effort, nor crowding my engine compartment to improve upon 0.070 volts.
.070 volts drop is diddly squat ( Exclamation indicates that the wire is good as new Exclamation ).

The voltage drop of your positive cable could be a lot more if your wire has "gone green". Shocked
Luckily there's a simple way to test it. But you need to beg or buy the battery tester ($30) and you need a voltmeter.
Wonder if AutoZone will let you use the tool for free.
I would not bother changing it if the vDrop is less than 0.25v.
Do the test, and you'll KNOW.

DIAGRAM: Starter & alternator circuit “The Voltage Drop Test"

Lots of members understand this test. If you have the tools, I'm sure members can help you figure out whether there's a benefit to changing your positive cable.
The job doesn't look like much fun, probably should test if its necessary.
_________________


'90 Westy EJ25, NEW oil rings (!) 2Peloquins, 3knobs, SyncroShop pressure-oiled pinion-bearing & GT mainshaft, filtered, cooled gearbox.
'87 Tintop, EJ25, cooled filtered (original) gearbox
....KTMs, GasGas, SPOT mtb

All Vanagons should do this:
Add direct starter-to-chassis cable THEN delete ground strap at front transaxle mount.
The best time to do this mod was in 2010. The second best time is TODAY.
If your starter is slow, this is MORE important.
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vanagonjr
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PostPosted: Wed Dec 03, 2025 7:04 pm    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

kamzcab86 wrote:

For me, a Group 41 is simply a PITA to get in and out of the cramped Westy box. A T5 is just a better fit and it allows for accessories.

I went with a T5 NAPA as well. I had Group 41’s in the past weren’t too bad to put in or out, but the last one was an absolute nightmare. It must have been just slightly bigger or thicker.

I need to copy your extended post idea!
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PostPosted: Wed Dec 03, 2025 1:57 pm    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

It is INDEED a PITA (not the bread).

Dang, wish we’d talked about this a week ago… I never considered another size.

New one goes in just as soon as I feel like rising from our current motel bed. Laughing

And more thinking, or not, about all this… our current, sometimes no-crank battery has been showing 650 to 670 CCA when warmish outside.

But since it should show 650 at 0, and 800 at 32, what should it have at the simple math of 64…?

950…? Or is this a tapered graph sort of gig?
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PostPosted: Wed Dec 03, 2025 11:35 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

vanagonjr wrote:

I hear you, but I have decided to skip Walmart from now on based on my last experience. I had a battery test bad at NAPA, and also at home with my Snap-On Battery tester - but I went to two Walmarts and they pronounced that battery as good.
After stating my case, showing the print-out from NAPA, an employee jumped through hoops to get my battery to test bad. After well over an 1/2 hour in the 2nd store (in addition to giving up my lunch hour for the 1st store, that I had to visit twice as the battery tester person was on lunch break), I took the refund and bought a battery at NAPA (5 or 10% discount with AAA) and at least I know that the staff there can properly test a battery.
Bottom line, I feel there is NO warranty with a Walmart battery.


I had Walmart T5 battery die, took it in to get a replacement, and the old guy at the counter put his tester on the old battery: CCA had dropped to around 590 and voltage read 12.5 or so (at home, it read 12.1 or 12.2). Tester showed the battery still good and the guy refused to sell me a new battery. The kicker: battery was out of warranty! Could not get the guy to understand that. Went to another Walmart and had no issue. I do, however, have a NAPA T5 in my van now.


E1 wrote:
Group 41, NAPA #7541, CCA of 650 @ 0F, 800 @ 32F.

If having a rotating passenger seat, you can install it once sliding the seat all the way forward, and rotating it 90 degrees.


For me, a Group 41 is simply a PITA to get in and out of the cramped Westy box. A T5 is just a better fit and it allows for accessories.

Image may have been reduced in size. Click image to view fullscreen.

(Yes, the + cable has a bit of tarnish at the end. I have a new cable ready to go in, but need to drop the fuel tank a bit to replace it. The original cable, despite that tarnish, still "only" has a 0.162 voltage drop during cranking.)
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PostPosted: Wed Dec 03, 2025 11:15 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Stock Group 41 battery has gotten us started all the way down to Zero Fahrenheit, and a few degrees lower- BUT, have not YET had the really cold winter starts of Chicago -20 or -30 F in the time we've had the Vanagon.
Ran through those cold temps with cars in the past that sounded like parts of them wanted to grenade while just having gotten the engine started a few minutes earlier... Shocked Shocked Shocked Shocked
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PostPosted: Wed Dec 03, 2025 11:09 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

ZTF, I used a power source at our carport… not sure I’d run our house system to power it, it gets damned hot but not sure how much power it takes.


To better answer the thread question…

John, ours is a NAPA Group 41, NAPA #7541, CCA of 650 @ 0F, 800 @ 32F.

I put our load tester on it at NAPA, and it showed well over 1,000 CCA at 50F.

If having a rotating passenger seat, you can install it once sliding the seat all the way forward, and rotating it 90 degrees.
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PostPosted: Wed Dec 03, 2025 11:06 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

E1 wrote:
kamzcab86 wrote:
IIRC, 650 CCA is the factory-original rating.


That what ours is and it’s enough.

It’s easy for some to think we need more than 650, but that takes more charge and more strain on the alternator, too (as you know). It’s even enough when starting at 25F — and with 15/50 oil.

The only reason I can imagine for actually needing more than 650 is if many mornings are way below freezing… though if so a dipstick heater is what we did at home. Big fan of those, both for reducing startup wear on cold and thick oil, as well as on the starter and battery themselves.


Being in a warm climate, never had to deal with super low temps much,.

Wondering what wattage or amps a dip stick heat draws, block heaters? At what level of low temperatures do you deploy heaters?

A place where I had worked had a huge diesel back up generator to run a huge building and all the high watt equipment the factory had running 24 7 That generator unit had an electric heater, it heated the coolant, and there was an electric coolant pump to keep the hot water circulating. It got up and running and generating power in well under ten seconds

When I was a kid, my family did a ton of camping, dad drove a 63 VW Microbus. On one camp adventure the night got so cold that dad couldnt crank the bus engine much, hardly turned, oil too frozen. So he set two single burner Coleman white fuel camp stoves under the engine. She after some heating fired right up. My dad was super super smart my hero.

That old bus took all over the western US and Canada, even up in Alaska, three or four week summer camp trips, living out of the bus and a tent, thousands of miles of cross county scenery and many shorter weekend local camping trips too. It was super fun, That bus was our flight to total fun camping road trips. We for several years spent near 30 days camping per year, The bus, and tent was home away from home


I drive the Vanagon now, camp out of it, but not so much epic trips as what my dad and mom set up when I was but a kid.

I will always have a VW bus or VW van of some sort my entire life so long as I drive. They are part of my home, in my heart.
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PostPosted: Wed Dec 03, 2025 11:00 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Ahwahnee wrote:


I always buy my batteries at Walmart. Whatever else you think of Walmart, it's a fact that they sell a lot of batteries making their stock more likely to be fresh. That's probably also true of Costco but I'm not a member of Costco.

I hear you, but I have decided to skip Walmart from now on based on my last experience. I had a battery test bad at NAPA, and also at home with my Snap-On Battery tester - but I went to two Walmarts and they pronounced that battery as good.
After stating my case, showing the print-out from NAPA, an employee jumped through hoops to get my battery to test bad. After well over an 1/2 hour in the 2nd store (in addition to giving up my lunch hour for the 1st store, that I had to visit twice as the battery tester person was on lunch break), I took the refund and bought a battery at NAPA (5 or 10% discount with AAA) and at least I know that the staff there can properly test a battery.
Bottom line, I feel there is NO warranty with a Walmart battery.

I blame those who made a habit of exchanging battery yearly at Walmart, which includes some here who have boasted of such (Not Ahwahnee).
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PostPosted: Wed Dec 03, 2025 10:39 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

kamzcab86 wrote:
IIRC, 650 CCA is the factory-original rating.


That what ours is and it’s enough.

It’s easy for some to think we need more than 650, but that takes more charge and more strain on the alternator, too (as you know). It’s even enough when starting at 25F — and with 15/50 oil.

The only reason I can imagine for actually needing more than 650 is if many mornings are way below freezing… though if so a dipstick heater is what we did at home. Big fan of those, both for reducing startup wear on cold and thick oil, as well as on the starter and battery themselves.
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PostPosted: Wed Dec 03, 2025 10:21 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Ahwahnee wrote:
zerotofifty wrote:
When you buy a battery, check out the date on the battery, buy a fresh one...


I had an employee at my local O'Reilly's admit that they update those date stickers each time they charge the batteries they're stocking. So,YMMV.

I always buy my batteries at Walmart. Whatever else you think of Walmart, it's a fact that they sell a lot of batteries making their stock more likely to be fresh. That's probably also true of Costco but I'm not a member of Costco.


True that does happen. But a stored battery that is recharged fully every month is better than one that was allowed to self discharge to a low level.
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PostPosted: Wed Dec 03, 2025 10:19 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Crooked Designer wrote:
I'm interested the T5 (which appears to be Group Size 90?) as I have a very tight fit in the starter battery compartment and would love some breathing room. A few people mentioned a "good amount" of cold cranking amps and I'm wondering if there is a recommended number on this. I'm currently looking at a size 90 battery with 650 CCA.. This good?


IIRC, 650 CCA is the factory-original rating.

zerotofifty wrote:
When you buy a battery, check out the date on the battery, buy a fresh one. I have found batteries at store a year old, and as such found that these batteries have been damaged by long term self discharge. A battery will self discharge, and a battery not stored at full charge will become damaged beyond repair, giving a short service life


Had to buy a battery for my GTI two weeks ago. Guy at Walmart pulled one off the front of the rack... terminals had corrosion (no covers on them either). Went over to the rack and saw that more had the same issue. He then pulled one off the back of the rack... brand-spankin' new, no corrosion, and had terminal covers/caps. Warranty is 4 years; my GTI requires replacement every 3 years like clockwork, so we'll see if the 4-year thing pans out.
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PostPosted: Wed Dec 03, 2025 9:41 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

zerotofifty wrote:
When you buy a battery, check out the date on the battery, buy a fresh one...


I had an employee at my local O'Reilly's admit that they update those date stickers each time they charge the batteries they're stocking. So,YMMV.

I always buy my batteries at Walmart. Whatever else you think of Walmart, it's a fact that they sell a lot of batteries making their stock more likely to be fresh. That's probably also true of Costco but I'm not a member of Costco.
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PostPosted: Wed Dec 03, 2025 9:23 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

When you buy a battery, check out the date on the battery, buy a fresh one. I have found batteries at store a year old, and as such found that these batteries have been damaged by long term self discharge. A battery will self discharge, and a battery not stored at full charge will become damaged beyond repair, giving a short service life

I have found the Vanagon sized battery is not very common, and with few Vanagons around, some stores or warehouses have old stocks of Vanagon batteries. avoid these old batteries, sure they might make it past the warrentee, but they certainly will not give a long service life.

I look for batteries with a date no more than a couple months past. Once I had to buy a year old battery, last minute purchase before a long trip, only one available locally, I returned it for failing within a couple months, the store had another battery for me, but it too was a year old, so they told me to come back later after they got a fresh one in stock. They told me the old stock ones were sent to recycle.

A good fresh battery may last near a decade, where as one that was sitting discharged for many many months may only last a few years, 1/3 rd the life. at say $200 each, that not fresh battery can end up costing you $400 more dollars over a decade if you need to buy three of them in the time you could have only needed to buy one of them

That leads me to something else, if your car is stored a lot, driven not often, driven short runs, your battery maybe in a frequent state of low charge, this harms the battery life, in that case a trickle charger can really extend your battery life, and thus save a good amount of money for you. Keep your battery at full charge at all times!

A car battery purchase is like buying fish at the market, you want fresh for best results.
Batteries are like fish
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Crooked Designer
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Joined: March 22, 2018
Posts: 616
Location: Chicago, IL
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PostPosted: Wed Dec 03, 2025 8:48 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Sodo wrote:
Akbarz wrote:
Bottom line: small starter battery, correct group size, good CCA. Your current setup doesn’t need more than that.


That's all you need inside the battery box.

Outside the battery box ya gotta consider the "current setup" to deliver the energy to the starter.

If your ground is crossing a corroded transaxle to get to the chassis there can be significant losses that a new battery obviously cannot overcome.
Nor a new starter.

You can perhaps learn the Voltage Drop Test and assess the condition of your 40-year old circuitry.
There's this....https://www.thesamba.com/vw/gallery/pix/1218526.jpg

Easiest..... is to simply bypass the (corroded) transaxle with a copper cable from the starter mount to the chassis.
Almost anyone who can go under the van can do this $20 mod.
No voltmeter required but ya gotta know how to "make good electrical connections".
And the Battery ground (right at the box) can often be improved.


You ever consider moving your starter battery to the engine bay behind the tail light? Now that I think of it, that area is probably where your fuel filler neck is on a Syncro. Anyway, doing the starter ground lug in the spring and considering moving the battery to the back as well. Would allow me to install a new and much much shorter positive wire.
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Sodo
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Joined: July 06, 2007
Posts: 10930
Location: Western WA
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PostPosted: Wed Dec 03, 2025 8:41 am    Post subject: Re: What’s the best car (starting) battery for the Vanagon? Reply with quote

Akbarz wrote:
Bottom line: small starter battery, correct group size, good CCA. Your current setup doesn’t need more than that.


That's all you need inside the battery box.

Outside the battery box ya gotta consider the "current setup" to deliver the energy to the starter.

If your ground is crossing a corroded transaxle to get to the chassis there can be significant losses that a new battery obviously cannot overcome.
Nor a new starter.

You can perhaps learn the Voltage Drop Test and assess the condition of your 40-year old circuitry.
There's this....https://www.thesamba.com/vw/gallery/pix/1218526.jpg

Easiest..... is to simply bypass the (corroded) transaxle with a copper cable from the starter mount to the chassis.
Almost anyone who can go under the van can do this $20 mod.
No voltmeter required but ya gotta know how to "make good electrical connections".
And the Battery ground (right at the box) can often be improved.
_________________


'90 Westy EJ25, NEW oil rings (!) 2Peloquins, 3knobs, SyncroShop pressure-oiled pinion-bearing & GT mainshaft, filtered, cooled gearbox.
'87 Tintop, EJ25, cooled filtered (original) gearbox
....KTMs, GasGas, SPOT mtb

All Vanagons should do this:
Add direct starter-to-chassis cable THEN delete ground strap at front transaxle mount.
The best time to do this mod was in 2010. The second best time is TODAY.
If your starter is slow, this is MORE important.
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