charging deep cycle batteries
Submitted: Monday, Sep 26, 2005 at 16:20
ThreadID:
26773
Views:
2866
Replies:
4
FollowUps:
0
This Thread has been Archived
ozidave
Hi, I know there have been a lot of posts about deep cycle batteries recently, but I have one more question. I have a 75ah deep cycle battery in my camper trailer, which charges from the car when I travel. When I stop I have 2 alternatives: (1) use my 8amp waeco charger from 240v, or (2) use my Honda 1kva charger. When I use my waeco charger at home on the "slow" setting, it takes forever to reach full charge. Will I damage the battery if I use the "fast" setting? Also, the Honda generator has a 12 volt battery charging outlet - will that damage the battery?
Thanks,
Ozidave
Reply By: Mike DiD - Monday, Sep 26, 2005 at 20:18
Monday, Sep 26, 2005 at 20:18
For long life you should charge a 75 amphour DeepCycle at no more than 18 amps. I suspect the Honda won't go that high without a 240volt charger.
AnswerID:
131893
Reply By: ToyMotor - Monday, Sep 26, 2005 at 20:19
Monday, Sep 26, 2005 at 20:19
No, and no - but it will still take forever to reach full charge!
Cheers
AnswerID:
131894
Reply By: Sand Man (SA) - Tuesday, Sep 27, 2005 at 08:10
Tuesday, Sep 27, 2005 at 08:10
Ozi,
In my opinion you would be best off if you invested in a quality 3 stage charger rated at 15-20 amps. This would give you a fast charge unit that you can leave connected at home to "float" charge the last little bit, or even leave on for extended periods without damage to your battery.
When "bush" you plug the charger into the 240 volt outlet on your Honda, or into the 240 volt outlet at a powered
camping site and you will have the same benefits.
The 12 volt charging outlet on the Honda may not be "controlled" and certainly not a 3 stage intelligent type.
AnswerID:
131946
Reply By: Mainey (WA) - Tuesday, Sep 27, 2005 at 11:37
Tuesday, Sep 27, 2005 at 11:37
0zi, without being too contradictory and starting a another war, I would use a 3 stage battery charger rated at about 10 to maybe a max of 15 Amps, with your 75 a/h battery, reason being it's generally accepted that a battery should be charged at about 10% of it's capacity, when put on charge for any long perioid of time, with or without a 3 stage charger.
Another bit of (useless) information:
the GMC branded 4 stroke 950w generators (28 kg) do have controlled 240v output and are availabe at about $400 here in WA (if you know where to look)
The 2 stroke 750w version is about $55, it's unregulated, BUT you add 240v regulated power board and you have voltage protection.
Information supplied by a SOLAR user who does not have your problem :-)
AnswerID:
131980