The file '6v 4.5AH Lead Acid Battery Shell For Retrofitting Emergency Lights With LiFePo4 Or Sodium Ion Batteries! 3D Printer Model' is (stl) file type, size is 7.7KB.
Many buildings still have emergency lights powered by a 6v 4.5ah lead acid battery. They go dead every few years and I've decided to start building sodium-ion battery replacements, using 2-series LiFePo4 BMS circuits for the two sodium-ion batteries. This keeps the sodium ion batteries charged at only like 80% power, and they could last decades and decades this way. I plan to add to this later. I used the 1x2 battery holder I uploaded a month or so ago for 2670 cells.
| 6v_7x45cm_BatteryShellTop.stl | 7.7KB | |
| 6v_7x5cm_both.stl | 11.4KB | |
| 6v__7x45cm_BatteryShellBottom.stl | 3.8KB |
