Hey people,
First time poster. I have lurked a while and watched Will's videos on YT which brought me here to try and diagnose an issue with my campers battery bank.
I recently (3 months ago) purchased 3 x LiTime 100ah BT lithium. I have wired them all in parallel with exact equal lengths of 4AWG and a 100a ANL fuse between the battery positive posts and a large 600a bus bar.
The positive bus bar also shares connection with my 3000w inverter (never uses high current draw, max application will be 1400w for a hot water heater however this is not currently running), main load connecting wire to my 12v fuse panel and Renogy 50a DCDC MPPT controller.
All negative terminals are wired similarly with exact same length 4AWG to a negative bus bar which shares the negative for the Renogy unit, the inverter and fuse panel.
For the first several weeks things were running fine. A few weeks ago however I noticed fairly different SOC's as the batteries were used (5-10% between batteries).
This last week or two it has gotten significantly worse. I currently have two batteries at 100% SOC and one battery at 41% SOC.
I have emailed LiTime customer support and they seem to think everything is normal as the very limited bluetooth app says balancing, cells and BMS are all operating normal.
Can anyone advise as to what to look at from here?
Have a wired this setup incorrectly? Is this a manufacturing/warranty issue? How may I test my bank to troubleshoot this further?
I thought I had wired this correctly and in the best possible way for equalisation of the bank and decided to use bus bars instead of simply going terminal to terminal from opposite directions.
If it matters, I have limited load on the batteries since installing, a 12v Engel fridge which only runs sporadically at this current time, around 5a of load going to heating pads to keep my batteries warm when temps get low, a diesel heater which draws 0.5-4a while running depending on heat setting and 4 LED 12v puck lights.
Any help or advice would be greatly appreciated!
I also hope I have posted this in the right area, apologies if I haven't!
First time poster. I have lurked a while and watched Will's videos on YT which brought me here to try and diagnose an issue with my campers battery bank.
I recently (3 months ago) purchased 3 x LiTime 100ah BT lithium. I have wired them all in parallel with exact equal lengths of 4AWG and a 100a ANL fuse between the battery positive posts and a large 600a bus bar.
The positive bus bar also shares connection with my 3000w inverter (never uses high current draw, max application will be 1400w for a hot water heater however this is not currently running), main load connecting wire to my 12v fuse panel and Renogy 50a DCDC MPPT controller.
All negative terminals are wired similarly with exact same length 4AWG to a negative bus bar which shares the negative for the Renogy unit, the inverter and fuse panel.
For the first several weeks things were running fine. A few weeks ago however I noticed fairly different SOC's as the batteries were used (5-10% between batteries).
This last week or two it has gotten significantly worse. I currently have two batteries at 100% SOC and one battery at 41% SOC.
I have emailed LiTime customer support and they seem to think everything is normal as the very limited bluetooth app says balancing, cells and BMS are all operating normal.
Can anyone advise as to what to look at from here?
Have a wired this setup incorrectly? Is this a manufacturing/warranty issue? How may I test my bank to troubleshoot this further?
I thought I had wired this correctly and in the best possible way for equalisation of the bank and decided to use bus bars instead of simply going terminal to terminal from opposite directions.
If it matters, I have limited load on the batteries since installing, a 12v Engel fridge which only runs sporadically at this current time, around 5a of load going to heating pads to keep my batteries warm when temps get low, a diesel heater which draws 0.5-4a while running depending on heat setting and 4 LED 12v puck lights.
Any help or advice would be greatly appreciated!
I also hope I have posted this in the right area, apologies if I haven't!