OT: Battery Recharge Time

MichaelS wrote on 6/10/2005, 7:53 PM

Although not a Vegas issue, I hope someone can share their experience and knowledge.

I've been given several NRG Campak (12v) battery packs to use on a project tomorrow. The batteries are fully discharged. Anyone know the suggested recharge time for this battery. I have the appropriate accessory wall-wart chargers for the units.

I've search the NRG website for the information to no avail. I'd really appreciate someone's input.

Thanks!

Comments

farss wrote on 6/10/2005, 10:07 PM

Without me having the actual batteries AND the charger I've absolutely no way to even hazard a guess. As a very rough guide, look at the Ampere Hour rating of the battery and devide that by what the charger puts out and add a 50% margin. This works pretty well for lead acid and NiCd / NiMH but can be a long way off for Li Ion, they can take a long time to charge.
Bob.

MichaelS wrote on 6/11/2005, 4:57 AM

farss,

Thanks for the "formula"...I'll file it along with my other goodies. With time being of the essense, I put an 8 hour, overnight charge on them. It seemed to work fine. I appreciate your input. Thanks again!