Bear with... and thank you in advance for your sage advice as ever.
We have a 2017-built AS Corinium Duo. It has the Sargent EC500 PSU and EC480 control panel kit, a Sargent PX300 mains charger, and a Victron 75 / 15 MPPT as a direct replacement (I just wired it directly into where the old Sargent cables went) for the Sargent unit that was making some odd noises and I need something a bit beefier for the extra PV I fitted (it had one when we bought it secondhand). I also bought two HLB750 100AH leisure batteries from Halfords back in June 2021. I don't feel I've gained much in terms of off-grid ability and over the last two years, never been able to fully rely on 12v.
Current situation:
The question therefore is...
We have a 2017-built AS Corinium Duo. It has the Sargent EC500 PSU and EC480 control panel kit, a Sargent PX300 mains charger, and a Victron 75 / 15 MPPT as a direct replacement (I just wired it directly into where the old Sargent cables went) for the Sargent unit that was making some odd noises and I need something a bit beefier for the extra PV I fitted (it had one when we bought it secondhand). I also bought two HLB750 100AH leisure batteries from Halfords back in June 2021. I don't feel I've gained much in terms of off-grid ability and over the last two years, never been able to fully rely on 12v.
Current situation:
- One of the batteries is goosed, it won't take a charge and the CTEK and RING charges/recoverers report it's beyond help
- The other battery reports Ok and seems to take and hold a charge over 48hrs, however, on plugging this one back into the Moho today and turning on the power, it instantly went to 10.7 volts so that's goosed too
- On checking everything (visible and get-atable fuses, fuses inside the charger, and at the starter battery, etc.) I discovered that the EM40 is burnt out on the VB input (as they do). I don't know when this happened, but this year certainly and maybe in the last couple of months
The question therefore is...
- Should I decide to splash out on a lithium battery, will the Sargent PSU and Sargent Charger be OK?