Vans starter battery

[Ianneswick]

Morning, the battery on my van is losing power while not running, if I'm using every day it's not losing much about .3v but If I leave it a day it's enough for it not to start, multimeter said 12.1volts on the day it didn't start, the battery as been on just over 2 years & is 70ah, there's a split charge relay from that battery charging 2 leasure batteries, Could this have affected the vans starter battery over time? I'm wondering if I need a bigger starter battery? Any advice? Ian

 

[Diabalo]

I would say your battery is goosed if its going down to 12.1v in a day.

 

[Ianneswick]

I would say your battery is goosed if its going down to 12.1v in a day.

That's my thinking just after a second opinion before I it another battery, cheers ian

 

[donkey]

70ah sounds a bit small for a Sprinter van. I would check out the correct size before ordering a replacement

Geoff

 

[Diabalo]

That's my thinking just after a second opinion before I it another battery, cheers ian

Get it tested before you replace it and also look to see if you have anything that is draining the vehicle battery. If you have solar you can fit a Vanbitz battery master to keep your vehicle battery topped up.

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[sonny]

Sounds like wrong size battery

 

[Two on Tour]

Looking on the internet, the Sprinter battery looks to be 100aH and will have far higher cranking amps for starting than your present 70aH battery.

 

[Ianneswick]

Looking on the internet, the Sprinter battery looks to be 100aH and will have far higher cranking amps for starting than your present 70aH battery.

Cheers

 

[Nirvanauk]

Go and buy a new battery

 

[Bertilak]

If it's losing that per day, and less than three years old, have you tried disconnecting it over a weekend, to check you haven't a parasitic load? In my experience some aftermarket extras pull enough to flatten it over a few days , eg USB sockets, sat navs, android head units.
Three years is very short, but modern battery performance does seem to drop off a cliff when it's dying, even if they usually last 2-3 times longer than batteries did 25 years ago.

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[Richard n Ann]

My starter battery is over 9 years old looked after by an optimate at home and Votronic duo solar while away... I'm going for the world record

 

[Just smiffy]

Put your reg in here and it’ll tell you what battery you need plus they’ll deliver it to your door… a recommended company on here and a good price..

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[TerryL]

Check over all the battery connections as well while you're at it, including earth straps. Many folk install an extra engine/earth cable as the originals can be a bit iffy. Bad connections won't help the recharging either.

 

[cyberyacht]

I don't know where you're located but I have a spare 95AH starter battery in my garage. If you're relatively local to the Solent or on my way to Devon next week and are interested, send me a PM.

 

[FrankNicklin]

Got 95ah on my Ducato JTD. 70ah does't sound right.

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