samarsingla
New Member
Does anyone know what is approx. charge rating of standard 9v batteries? Rechargeable ones have a rating of about 170 mAh but the non rechargeable ones have no rating. Please tell me if someone knows.
Thanx
Thanx
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samarsingla said:Does anyone know what is approx. charge rating of standard 9v batteries?
I've heard there is a way using low duty cycle pulses but I wouln't recommend it. I haven't tried it myself and you could be right but some people swear by it.audioguru said:Some peope think that ordinary alkaline batteries can be recharged. It is dangerous because they could leak or explode, and a "charge" lasts only a few minutes.
$39 is high to you considering how quickly that adds up when buying alkalines over time? I have read quite a few articles on the very subjest and from what I gather, it's very possible and quite safe PROVIDED the proper charging circuit is used. Mfrgs. place those warning labels on the batteries since the avg. home charger isn't capable of safely charging an alkaline as well as it would diminish new battery sales thereby keeping some money in our pockets.!! And we can't have that, can we?audioguru said:Recharge an "orinary batery"??
It probably works as well as they can spell. It has a high price and no spec's what-so-ever.
why not just get NiMH batteries? They are actually engineered to be rechargeable, they have higher capacities, and they are able to supply larger currents. They are cheap, too.HiTech said:$39 is high to you considering how quickly that adds up when buying alkalines over time? I have read quite a few articles on the very subjest and from what I gather, it's very possible and quite safe PROVIDED the proper charging circuit is used. Mfrgs. place those warning labels on the batteries since the avg. home charger isn't capable of safely charging an alkaline as well as it would diminish new battery sales thereby keeping some money in our pockets.!! And we can't have that, can we?
Energizer sells C and D Ni-MH cells with a dinky little AA cell inside. 2500mA/hrs.Hero999 said:While the AA NiMh cell has a similar capacity to the same size alkaline, alkaline 9V, C/D cells have much greater capacities than NiMh.
Yeah, I just saw that, too. How weird is that? You can get some pretty good C and D cell NiMH batteries, though. I've seen some that are up to 10000mAh.audioguru said:Energizer sells C and D Ni-MH cells with a dinky little AA cell inside. 2500mA/hrs.
Exactly, this isn't the case with the alkaline C and D cells.audioguru said:Energizer sells C and D Ni-MH cells with a dinky little AA cell inside. 2500mA/hrs.
Does anyone know where to find specs on these? I currently lug around a 12AH SLA for my metal detector. Six of these would cut the weight to less than half, and at a reasonable price.poopeater said:Yeah, I just saw that, too. How weird is that? You can get some pretty good C and D cell NiMH batteries, though. I've seen some that are up to 10000mAh.
**broken link removed**
10000mAh is definitely on par with alkaline for higher drain applications.