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DiscoWeb Bulletin Board » Message Archives » 2003 Archives - Discovery Technical » Archive through December 23, 2003 » Gel Cell and Deep Cycle Batteries « Previous Next »

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Luis Valdez (Virtualmex)
New Member
Username: Virtualmex

Post Number: 10
Registered: 11-2003
Posted on Friday, December 19, 2003 - 02:12 pm:   Edit Post Delete Post Print Post

Can anyone give me their thoughts, experience or any comments on using GEL CELL BATTERY or the OPTIMA DEEP CYCLE BATTERY in their Disco? I don't like the fact that when I leave things on (i.e. aftermarket radio, AC, etc...), it takes a second for my Disco to start but it starts fine when everything's off. Do you think the DEEP CYCLE or GEL CELL BATTERIES will fix that problem? Thanks for your help!

-Luis ('95 Disco Owner)
 

Victor Biro (Vabiro)
Member
Username: Vabiro

Post Number: 63
Registered: 10-2003
Posted on Friday, December 19, 2003 - 04:16 pm:   Edit Post Delete Post Print Post

Luis,

I can't specifically comment on the hesitation you're experiencing, but generally deep cycle batteries - like the Optima - are preferable for environments where the battery could be completely discharged.

Completely discharging a standard, "maintainance free", battery will usually dammage the cells. For example using the battery to power a winch to complete discharge would pretty much kill the battery. With a deep cycle a boost and some normal maintainanace and you'd be fine.

Additionally, the construction of the Optima battery is more resistant to damage caused by shock and vibration. Which means you will probably get much longer life from the Optima, even if you don't go off road.

In any case, I would check the battery voltage, both sitting and while under load (starting). You might be right, and it's time for a battery, or it could be other problems with connectors etc.

cheers
Victor
 

thom mathie (Muskyman)
Senior Member
Username: Muskyman

Post Number: 486
Registered: 11-2002
Posted on Friday, December 19, 2003 - 05:05 pm:   Edit Post Delete Post Print Post

A standard starting battery is designed to produce alot of amps for a short period of time where a deep cycle is designed to produce a lower total amp discharge for long sustained periods.

there are also combination batteries designed to do both such as Marine batteries. but they sacrifice cranking Amps as well compared to a true starting battery.

I run a true starting battery in my boat because marine batteries lack the amps to turn the 468 over easily and it hesitates and that is hard on starters.

you may want to check all the conections at your battery and starter. often a coroded terminal can cause a big hesitaion.
 

Erik G. Burrows (Erik)
Senior Member
Username: Erik

Post Number: 285
Registered: 04-2002
Posted on Friday, December 19, 2003 - 06:04 pm:   Edit Post Delete Post Print Post

Also keep in mind that no battery is meant to be completely discharged. Even the deepest of deep cycle batteries are damaged by total discharge.

Deep cycle batteries should really never be discharged more than 80%, or thier life span will be greatly shortened. Starting batteries shouldn't be discharged more than the amount to start your car. They become damaged very quickly.

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