A freind has an off grid vacation cabin. Last year he bought these L-16-Hs used.
They were sold as only 2 years old. However his solar pannels didn't keep them charged and now they won't hold or take a charge.
He asked me to try to bring them back with my desulphator/pulse charger.
This has worked great on golf cart batteries and my 2850 LB lift truck battery so we're giving it a go.
This charger is using 280 UF worth of motor run caps and a 35 amp fullwave bridge fed direct from the AC mains through a 2 KW isolation transformer.
I think each battery will take about a week. I'm tracking from start to finish amps, volts and SG. They are 6 volt but all read around 2 volts.
If they charge up then I'll do a load test. These things are heavy, I think over 100 lbs each?
JK TAS Jerry