Hello Everyone,
After watching few of Will's videos on YT, got inspired and started putting together a Lifepo4 battery pack for my DIY trailer camper conversion build.
Not knowing where to start and the supply chain limitations initially I got 4x25ah 3.2 Topband LifePo4 batteries and 120A 4s BMS from Overkill Solar. Batteries were bare metal, didn't come with nuts or busbars. Stumbled around to find the correct size shrink wrap, M6 nuts and DIY busbars using 0.125 copper bar. Cheap crimping tool and good terminals from Grainger.
Measuring and drilling holes in busbars was not easy with limited skills.
I wanted a metal box as this will be next propane tank, assumption being metal box is safer. They were expensive. I found a International Harvester Cub battery box for reasonable price.
Top balanced and assembled the battery with BMS connected to WFCO WF-8955SPEC-B-LIS power center. Worked perfectly. It was sitting there as I build the camper.
Cells were from a local supplier off ebay. They were pricey compared to BatteryHookup which I noticed later.
Now I got 12 more from same supplier(OOS at batteryhookup) and want to arrange in 4s4p "side-by-side" config.
Is this layout correct?
Can I just use longer copper bars and drill holes?
For the right most busbar where 4+ve and 4-ve are combined, can I just use one long copper bar?
Thank You.
After watching few of Will's videos on YT, got inspired and started putting together a Lifepo4 battery pack for my DIY trailer camper conversion build.
Not knowing where to start and the supply chain limitations initially I got 4x25ah 3.2 Topband LifePo4 batteries and 120A 4s BMS from Overkill Solar. Batteries were bare metal, didn't come with nuts or busbars. Stumbled around to find the correct size shrink wrap, M6 nuts and DIY busbars using 0.125 copper bar. Cheap crimping tool and good terminals from Grainger.
Measuring and drilling holes in busbars was not easy with limited skills.
I wanted a metal box as this will be next propane tank, assumption being metal box is safer. They were expensive. I found a International Harvester Cub battery box for reasonable price.
Top balanced and assembled the battery with BMS connected to WFCO WF-8955SPEC-B-LIS power center. Worked perfectly. It was sitting there as I build the camper.
Cells were from a local supplier off ebay. They were pricey compared to BatteryHookup which I noticed later.
Now I got 12 more from same supplier(OOS at batteryhookup) and want to arrange in 4s4p "side-by-side" config.
Is this layout correct?
Can I just use longer copper bars and drill holes?
For the right most busbar where 4+ve and 4-ve are combined, can I just use one long copper bar?
Thank You.