I took an old 6 volt golf cart battery and did the conversion to alum and I've had it running two 12 volt cpu fans and a small fm/am radio for days with the voltage only dropping about .01-.02 volts per day. The thing is solid and holds steady but that may just be because of the amp hours in it. Here's a video showing it:
Golf Cart Battery Converted from Acid to Alum - YouTube
I also just converted an old NAPA high performance car battery today. This thing has really thick lead plating in it not the kind you find in EverStart batteries. John is completely truthful about the EverStart plates being crap. I had it holding steady without a load on it at around 10 volts. I put the same two 12 volt cup fans on it and it's been running for nearly 3-4 hours and the voltage is down near 5 volts now with the load on it. I'm noticing a much bigger decline in voltage on the car battery with a load versus the golf cart battery.
I'm not certain if that type of voltage drop off was normal for these types of batteries, but it does seem gradual at least. I was hoping to be able to use these for some sort of solar setup, but it won't run the inverter long.
Golf Cart Battery Converted from Acid to Alum - YouTube
I also just converted an old NAPA high performance car battery today. This thing has really thick lead plating in it not the kind you find in EverStart batteries. John is completely truthful about the EverStart plates being crap. I had it holding steady without a load on it at around 10 volts. I put the same two 12 volt cup fans on it and it's been running for nearly 3-4 hours and the voltage is down near 5 volts now with the load on it. I'm noticing a much bigger decline in voltage on the car battery with a load versus the golf cart battery.
I'm not certain if that type of voltage drop off was normal for these types of batteries, but it does seem gradual at least. I was hoping to be able to use these for some sort of solar setup, but it won't run the inverter long.
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