Thread: Replacement battery for a D4

I have done some research lately.

My undestlanding is that
If you do not have concerns for leakage, then AGM is not a cost-effective option ,compared to sealed lead acid.

If you want to mount the battery upside down, then yes..go AGM.

I recently replaced mine with a Varta unit (lead acid. The factory battery is also a varta lead acid. Excellent choose land rover made, I would say. (Okay she is a defender...Not a D4

Btw I believe both Bosch and Varta are made in the same factory, I think by Johnson controls? At least that's what is written on my Varta silver dynamic

Cheers

Originally Posted by martnH

I have done some research lately.

My undestlanding is that
If you do not have concerns for leakage, then AGM is not a cost-effective option ,compared to sealed lead acid.

If you want to mount the battery upside down, then yes..go AGM.

I recently replaced mine with a Varta unit (lead acid. The factory battery is also a varta lead acid. Excellent choose land rover made, I would say. (Okay she is a defender...Not a D4

Btw I believe both Bosch and Varta are made in the same factory, I think by Johnson controls? At least that's what is written on my Varta silver dynamic

Cheers

Except LR are replacing with AGMs under warranty!

Benefits include - quicker uptake of charge (short trips are murder on batteries)
Higher pulse current.
No outgassing to cause corrosion or damage.
Less susceptible to plate damage.

On a lesser occasion I’ve even seen WLA batteries killed when they drew water in during a deep immersion. Something SLA AGMs won’t do.

Lots of benefits

Originally Posted by Tombie

Just a side note on this old thread..

I had the PC1350 Odyssey in the D4 for 12 months... Turned into a disaster of sorts...

Dropped charge capacity, only holding 12.3v maximum after restoration charges etc in an attempt to fix it (as per Odyssey recommendations).
Rested voltage after 24 hours was 11.8v


I've since changed to a Bosch LN5 and initial impressions are promising.

Tombie, did Odyssey honour the warranty?

Originally Posted by jwb

Tombie, did Odyssey honour the warranty?

Yes.

Hi Tombie,

Do you have a long term review/opinion of the Bosch LN5?

Varta G14 prices have gone through the roof since I last bought one!!!

Thanks

Dean

Originally Posted by Tombie

Just a side note on this old thread..

I had the PC1350 Odyssey in the D4 for 12 months... Turned into a disaster of sorts...

Dropped charge capacity, only holding 12.3v maximum after restoration charges etc in an attempt to fix it (as per Odyssey recommendations).
Rested voltage after 24 hours was 11.8v


I've since changed to a Bosch LN5 and initial impressions are promising.

Originally Posted by Stuart02

Hi Tombie,

Do you have a long term review/opinion of the Bosch LN5?

Varta G14 prices have gone through the roof since I last bought one!!!

Thanks

Dean

I do, don’t!

Replaced with an SSB a while back. The Bosch started to drop voltage quickly and was struggling to start the vehicle.

Originally Posted by Tombie

I do, don’t!

Replaced with an SSB a while back. The Bosch started to drop voltage quickly and was struggling to start the vehicle.

Thanks as always - it's really great to have someone on the forum who's roadtested pretty much everything there is to try on a D4!!

Is there any such thing as too many CCA on a starter battery? No-one's frying starter motors or stripping gears or anything?

Originally Posted by Stuart02

Thanks as always - it's really great to have someone on the forum who's roadtested pretty much everything there is to try on a D4!!

Is there any such thing as too many CCA on a starter battery? No-one's frying starter motors or stripping gears or anything?

Nope. You can only have too little. A motor can only take the current it’s capable of and that’s available.