Hey All,
Just got back from a trip to the Sierras for 4 days. This was our 3rd trip on our new SOK Lithium 100 amp-hr battery. On our final day, I woke up to absolutely no electricity. The SOK BMS app gave me the following screen shot. I had gone to bed last night with it at 68% and powering just the CO/Propane monitor as well as a 60watt electric fridge, pulling about 5 amps.
I started the truck and the Victron DC-DC charger showed bulk charging at 14.5V @ 20-25 amps. The BMS also showed a +20-25amp charge.
Drove 7 hours home, and to my surprise, the battery is now only at 38%. Something must be off... 20 amps @ 7 hours = 140 amp hours....I have 4 ga wires running from the alternator/starter battery in the truck back to the camper.
While we were camped I had my 200w solar panels out, getting about 13.5V @ 10amps. I have the settings on the solar charger to LiFePO4, which I thought would up the voltage to ~14.0V... Still it was enough to keep things relatively topped off. But, to my surprise again, the BMS never did get over 80% charged. Volt meter in the camper was always above 13V.
Any ideas? Any troubleshooting trips? This is my first Lithium battery and before this was very impressed with it. Thank you for any help.
Here is the current reading from the BMS. All cells appear to have voltages that are similar.
Just got back from a trip to the Sierras for 4 days. This was our 3rd trip on our new SOK Lithium 100 amp-hr battery. On our final day, I woke up to absolutely no electricity. The SOK BMS app gave me the following screen shot. I had gone to bed last night with it at 68% and powering just the CO/Propane monitor as well as a 60watt electric fridge, pulling about 5 amps.
I started the truck and the Victron DC-DC charger showed bulk charging at 14.5V @ 20-25 amps. The BMS also showed a +20-25amp charge.
Drove 7 hours home, and to my surprise, the battery is now only at 38%. Something must be off... 20 amps @ 7 hours = 140 amp hours....I have 4 ga wires running from the alternator/starter battery in the truck back to the camper.
While we were camped I had my 200w solar panels out, getting about 13.5V @ 10amps. I have the settings on the solar charger to LiFePO4, which I thought would up the voltage to ~14.0V... Still it was enough to keep things relatively topped off. But, to my surprise again, the BMS never did get over 80% charged. Volt meter in the camper was always above 13V.
Any ideas? Any troubleshooting trips? This is my first Lithium battery and before this was very impressed with it. Thank you for any help.
Here is the current reading from the BMS. All cells appear to have voltages that are similar.