I’m closing in on getting new batteries for my GEM, have decided to go with flooded rather than gels (that bang-for-the-buck thing), and am down to either DEKA GC12V or Crown CR155. They’re both 155 AH, but the Dekas would be about twenty bucks apiece cheaper.
I have considered, and rejected, the idea of going with 8-volters, even though I could get 13680 watt-hours out of nine of the Trojan T-890s (190 AH@8volts), as opposed to the 11160 watt-hours from the six 155 AH @12 volt models. By comparison, the stock 130 AH@12volts batteries hold 9360 watt-hours, so the 155s are about a 20% gain (gotta do that conversion to watts to compare batteries of different voltage)
I’m well aware that my stock Zivan charger won’t be up to the job, and have been looking at these, which are rated for 150 to 350 AH at 72 volts. .but are around $500:
My car is equipped with the FastCharger receptacle and associated parts, and I’m sure I could make it work with about any external charger with enough fiddling.
What I’d REALLY like to know is if anybody has experience with the quality of the Crowns versus the Dekas