Battery Voltage discharging to low but Battery Percentage staying at 100%.

oliverbunyan

New Member
Hi all,

I've recently come up with both an issue with my Renogy Lithium 100aH battery. My battery has once been discharged to flat and this way months ago. Apart from that it merely drop below 95% over night. Running my fridge constantly and then re charging the next day via my victim dc-dc charger and the solar when I use it to drive to work etc.

All of a sudden my inverter has been bleeping into a fault when turning my engine on. I've noticed that my battery has been discharging down to as low as 10.5V when the vehicles idle, then the voltage level spiking back up when the engine turns on and the dc-dc is imagine is kicking voltage into the battery.

This is becoming an issue as when I'm staying in the van, the voltage levels dropped to low for me to use my sink etc and I'm going to Europe for 2 weeks in the van in 2 weeks time and now I'm thinking there's no way of my recrifying the battery in this duration.

Has anyone come across this issue and how it can be rectified. The voltage levels are dropping as low as the voltages would drop at 0% but being a 100% battery.

Quite concerned.

Thanks in advance to any responses

I've attached images below showing the voltage spike when the vehicles turned on and also showing the low voltage while the % was at basically 100%. I'm thinking the battery is broken feel like all this started happening with the warm heat.

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