I have a 2 Werker Type 31MDC batteries and run a 400 watt inverter from it. I bought a Sunforce 60 watt solar setup to charge it. The batteries are 3 years old now and I'm not getting a recharge from my panels. I've tested my panels for voltage and they're all producing. I'm assuming, with the battery draw, I should be able test amperage??? That was the first question. I charged up the batteries with my car charger (6amp) and got them to 100%. Just hooked them up again (to check them) and found them at 50%. The panels should be giving me 5amps (optimal I realize).. I'm thinking the batteries need to be re-conditioned. Can they? Are they just old (3 years)? Maybe I'm bleeding back voltage... panels?, inverter? Do I just have the wrong batteries? Oh ya.... Are this panels the problem?