Duel Battery maintance

Submitted: Wednesday, Jul 04, 2018 at 10:06
ThreadID: 136936 Views:1128 Replies:7 FollowUps:3
Can you run deep cycle batteries down and just charge them up when required, or
must they stay charged all the time?
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Reply By: Athol W1 - Wednesday, Jul 04, 2018 at 10:44

Wednesday, Jul 04, 2018 at 10:44
Wato35

ANY battery will last longer if it is kept in a fully charged state, it is not advisable to let any battery run down to its considered flat state of charge and not take action to return it to a fully charged condition.

Any battery that is left in a state of discharge will very quickly become totally unusable.

Regards
Athol
AnswerID: 619940

Follow Up By: Malcom M - Friday, Jul 06, 2018 at 09:41

Friday, Jul 06, 2018 at 09:41
Not so.
LifePo4 prefer to be stored in a slightly discharged state.
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Reply By: HKB Electronics - Wednesday, Jul 04, 2018 at 11:39

Wednesday, Jul 04, 2018 at 11:39
As Athol wrote you shouldn't run them down to far, preferably not below 60% for deep cycles or there abouts, and they should be fully charged ASAP after being discharged. They should be stored in a fully charged condition and have a regular maintenance charge whilst stored.
HKB Electronics

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AnswerID: 619941

Follow Up By: Stevo_62 - Wednesday, Jul 04, 2018 at 19:33

Wednesday, Jul 04, 2018 at 19:33
Is it ok to leave battery hooked up to solar panel 24/7 when not in use ie in storage?
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FollowupID: 892270

Follow Up By: Athol W1 - Wednesday, Jul 04, 2018 at 19:57

Wednesday, Jul 04, 2018 at 19:57
Steve

The simple answer is YES, provided that you have a suitable charge regulator fitted in the system and that regulator would preferably be a multi stage type battery charger that accepts solar input.
Regards
Athol
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Reply By: Member - William B (The Shire) - Wednesday, Jul 04, 2018 at 13:42

Wednesday, Jul 04, 2018 at 13:42
Hi wato35,

As already stated keeping them charged is ideal, and with the price of the smart chargers being a reasonable price it is easy and cheaper than letting your batteries die.

William
Always planning the next trip. VKS-737 mobile 1619

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AnswerID: 619942

Reply By: kgarn - Wednesday, Jul 04, 2018 at 17:18

Wednesday, Jul 04, 2018 at 17:18
The statement that :

"ANY battery will last longer if it is kept in a fully charged state"

is probably true for Lead Acid/ AGM batteries etc but not true for Lithium batteries for which it is generally recommended that they be stored at less than fully charged.

Ken





AnswerID: 619945

Reply By: AlanTH - Friday, Jul 06, 2018 at 09:11

Friday, Jul 06, 2018 at 09:11
I always plug the van into the power when at home and let the Ctek look after the Delkor 80ah battery. 7 years old and just changed it for a new one.
80ah is all we need for the lights as we don't run much in the way of electrical stuff when away.
Compare that to the constant purchase of new batteries for the Cooks Camry which I'm afraid to say I neglected battery wise.
I could have saved a few bob by buying a Ctek years ago but didn't for some reason.
Keep it charged and it'll last much longer.
AlanH.
AnswerID: 619971

Reply By: Batt's - Friday, Jul 06, 2018 at 17:15

Friday, Jul 06, 2018 at 17:15
With the amount of different types of deep cycle batteries available it may help to mention what type your specifically looking at.
AnswerID: 619992

Reply By: Member - Mark C (QLD) - Friday, Jul 06, 2018 at 19:17

Friday, Jul 06, 2018 at 19:17
My two 110amph batteries in my Complete Campsite Exodus are 7 years old and still hold full charge. The camper is stored under an awning and has light to the 135watt solar panel so is constantly trickle charged through the MPPT charger and then the DC/DC charger. The Ctek 25amp charger does the job before each trip and when in caravan parks but usually only a couple of times a year as we generally bush camp.
Mark And Helen QLD
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AnswerID: 619998

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