Need some info about replacing some rechargeable batteries.
I recently bought a Pignose Hog 20 portable amplifier, which I put a strap on so that I could walk around while playing. (It was for a strolling-among-the tables dinner gig.) The amp basically worked fine, but it contains 2 really heavy lead/acid batteries which made it awkward to carry around. I was wondering if it would be possible to replace the lead/acid batteries with NiMH rechargeables. Here are some details:
Current Batteries- two 6V 4.0 Ah /20HR sealed lead acid batteries wired in series
Amp-(Info from manual)-Capable of producing UP TO 20W power…
Operates for several hours on a full charge
(not very specific, I know)
Possible replacements- eight to ten C-size NiMH batteries
(rated 1.2V, 3700mAh) wired in series
I never run the amp above half volume, so I thought I could run in on 8 batteries rather than 10, and I don’t need to use it for more than an hour at a time, so the slightly lower Ah rating should be okay.
Are there differences in resistance and so on which prevent this replacement?
Is it okay to run so many NiMH batteries in series?