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How long to charge gel battery

12 posts in this topic

How long should I charge a 7.0 amp battery thats dead with a .5 amp charger. I just got a different vex and always used a motorcycle battery with my old one. The charger or battery don't have an indicator. Thanks for the help, Eric

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The chargers are amp/hours so if it's a 7 amp battery and a .5 amp charger that would be 14 hours from dead.

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if you just purchased a new Gel battery... they are probably already charged.
The one I got is labeled. " sealed lead acid " By nature vision. Mine is showing a full charge right out of the box. CT

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Thanks for the answer.I have one more question.How long do you charge if its not dead I would think it would be 2X the amount of time you used it. Thanks, Eric

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My Vexilar manual says that it draws 275mA. Someone correct me if I'm wrong but if you run it for 4 hours you would have drawn 1 Amp if indeed 275mA is .275Amps. If your charger is .5 Amp then you would need to charge for 2 hours provided my reasoning is correct to replace that 1Amp used. I could be wrong.

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Cool coincedence,i logged on tonight to ask a very similar question.I have a deep cycle charger,#1-setting says 2A ,and #2-setting says 10A.Which setting do i use and for how long?The battery is a Zercom 12volt Dc 7.0 AH battery.I have been using the simple little charger that came with it(a plug into the wall unit with +/- gator clips)but i am looking to charge the battery in a faster,more controlled manner.Thanks Ice Slabs

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As kevin said it depends on the amps being drawn.His example is right. ice slabs you should go with the 2 amp and from a dead battery it would be 3 1/2 hrs. One thing you can do is get the Vex auto charger which charges faster and slows to a trickle charge near the end.You don't need to know how long to put it on and if you accidently leave it on for days it will not damage the battery.

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I really recommend the auto charger. Only difference between mine and the usual Vex plug-in charger is there's a little red light that's unlit while charging but lights when charging is complete. It's nice to forget the math and just plug 'er in. cool.gif

Mine came that way with my FL8-SLT five years ago. Don't know where you can get the smart chargers alone now.

Anyone?

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I always thought for every hour of use, you were suppose to charge it 2 hrs--that's what I've always done anyway--haven't had any problems yet.

stf

I think they sell the chargers your talking about on the vexilar HSOforum ($18).

hawgTime

[This message has been edited by hawgTime (edited 01-06-2003).]

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My buddy and I both bought FL8's back in 1989. He charges his battery with the wall transformer type charger he got with the unit, (he has bought every level indicator / accessory gadget Vex. has come out with). His 13 yr old battery is still kicking.

I have burned out several chargers, 1/2 dozen batteries, I bought a fancy digital multimeter from radio shack to try to figure the charge rate - level. Now I just hook up to my 10/2 amp Century for a couple hrs, or overnite. I figure what the hell, either you've got it - or you don't.

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hey big dip

Same with me. I bought my first Fl-8 back in '90 and never had to replace the battery. Just sold that unit last year.

hawgTime

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