Volts/% charge
A question for all you 12VDC Battery Gurus
I have 4- 6V deep cycle Golf Cart batteries connected in series/parallel through a Perko battery/isolation switch with “Both, Batt #1, Batt #2 and Off” positions.
After4 days of charging (Progressive Dynamics, Intellipower 9200 series, 60Amp. “Smart” Converter) All readings are open circuit and both batteries were isolated (Off) during the idle time.
Secured charging, initial voltage was Batt #1- 12.9, Batt #2- 12.94, 100% charge
19 hours after securing charging Batt #1- 12.43, Batt #2- 12.45, about 75% charge
4 days after securing charging Batt #1- 12.39, Batt #2- 12.39, about 70% charge
2 weeks after securing the charge the voltage had about stabilized, Batt #1- 12.33, Batt #2- 12.35, about 65-70% charge.
When I lost about 25% of full charge after just 19 hours of idle time (open circuit) and another 10% or so after 2 weeks I think that my Batteries are shot! What is your opinion?
Thank you for your advice and time!!!
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2017 GMC 3500 4x4 Denali Duramax
2019 Outdoor RV (ORV) Timber Ridge 24RKS
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