Hey everyone,
I got roped into a project involving a 2013 Nissan Leaf and a bunch of 18650s. The car is getting older, so the range is understandably decreased by a bit. Gets about 65 miles and need it to go 80. The idea is to try and build a cheaper “range extender” and seeing if it works rather than drop a lot of money into a new car. I already have the cells, like-new MH1 cells, 868 of them. My idea is to use those heavy duty tool cases to enclose all this along with an inverter/BMS/charging circuitry. Battery will be 14s 62p, or about 10kwh. That should extend the range~ 25 miles, perfect. I plan to have cell fuses, temp sensors, high gauge cables, more fuses, and ammunition cans to hold the raw cells. DALY bms, expensive but worth it. Multiple tool boxes might be needed, depends on what I can fit. The car’s charger will plug into the battery, then route into the front of the car. This is to not have to modify the car and mess with the high voltage system, basically using its stock level 1 charger to charge it off an external battery. Can anyone think of anything I’m missing? I’ve got temperature shut offs handled, balancing I’ve got, ammo cans as protection and safety, good thick cables, fuses, cell level fuses, bms, and padding for physical stress/vibrations.
only pulls ~1500w, so around 30amps, nothing crazy.
it’s going to be a heck of a battery, but I want to be sure I’m not missing something or forgetting a key part somewhere.
thanks for reading.
I got roped into a project involving a 2013 Nissan Leaf and a bunch of 18650s. The car is getting older, so the range is understandably decreased by a bit. Gets about 65 miles and need it to go 80. The idea is to try and build a cheaper “range extender” and seeing if it works rather than drop a lot of money into a new car. I already have the cells, like-new MH1 cells, 868 of them. My idea is to use those heavy duty tool cases to enclose all this along with an inverter/BMS/charging circuitry. Battery will be 14s 62p, or about 10kwh. That should extend the range~ 25 miles, perfect. I plan to have cell fuses, temp sensors, high gauge cables, more fuses, and ammunition cans to hold the raw cells. DALY bms, expensive but worth it. Multiple tool boxes might be needed, depends on what I can fit. The car’s charger will plug into the battery, then route into the front of the car. This is to not have to modify the car and mess with the high voltage system, basically using its stock level 1 charger to charge it off an external battery. Can anyone think of anything I’m missing? I’ve got temperature shut offs handled, balancing I’ve got, ammo cans as protection and safety, good thick cables, fuses, cell level fuses, bms, and padding for physical stress/vibrations.
only pulls ~1500w, so around 30amps, nothing crazy.
it’s going to be a heck of a battery, but I want to be sure I’m not missing something or forgetting a key part somewhere.
thanks for reading.
