This gets a little tricky. You want to make sure that the battery management module is working properly. Put a volt meter on the auxiliary battery while the engine is running to be sure you are seeing 13.2 Ė 14.7 volts DC. You want to be sure the battery is charging properly first.
Next, what is attached to the auxiliary battery? I know that if you have a fridge, or an inverter attached and not running the Jeep every few hours may drain the battery.
If you have the sPOD positive and negative terminals attached to the aux battery you should not have any drain on the battery until a switch is turned on that has an accessory attached to it. This may drain the battery.
Ok, with that being said and out of the way, letís talk batteries!
Based on insurance claims against Optima from 2 customers and Sears relinquishing their contract with Optima due to failures and explosions, I would have to say that the Optimas are not my choice of batteries.
Thatís just my opinion and experience.
I have had a Sears DieHard Platinum P1 in my Jeep for 4 years now and have never had a problem with it! I run an Engle 45 quart fridge, an inverter while Iím out on expeditions and can run the fridge for 3 Ė 4 days without ever having to start the Jeep! This is a 10 year battery. It is also $185.00!
The Sears DieHard Platinum battery is a re-branded Odyssey battery. The Odyssey battery is one of the best batteries on the market right now. This is not just my personal opinion, this has been written about by some of the most prestigious journals and magazines out there! Heck, you can call and talk to Scott Brady of Overland Journal and he will confirm that for you.
I donít want you to get rid of your existing batteries, use them until they are expired and then replace them with the Odyssey batteries.
I think there is something draining the battery. I would disconnect anything connected to it and keep the charging system in place to evaluate whether or not it is still discharging.
Sorry for such a long response Andre, but this needs to be looked at real close before you spend a ton of money needlessly. Call John at Benchmark and get his opinions on the system as well.
Thanks again for asking me.
-John the sPOD guy
08 Rubicon - AWE FAWK TOO MUCH TO LIST!
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