Hello, I'm currently building an outdoor project with an ESP32 and a few sensors. I'm using small 5V solar panels for this (as planned) and would like to build a buffer out of LiFePO4 batteries because they are cycle-resistant and temperature-resistant; they are generally very safe. The only problem is that I can't find a…
Hi, I recently tried to build a battery, and it caught fire and exploded. That's why I'm not brave enough to try the big one I originally wanted to make. The small one was for practice. 😂😂😂😂 I'm moving to Dillenburg soon, and in the next four weeks, if anyone in this room could help…
A friendly hello to the forum community, Almost a year ago, I switched my small off-grid PV system from VRLA/Gel to a LiFePO4 battery with a passive BMS. Since there's not much solar harvest in the winter, I'd like to manually balance the cells using a small lab power supply. During the "brighter" season, the…
Good afternoon dear people I got a 7.5 amp battery for a good price. However, I charged it, and when it was fully charged, I measured 38V. So I thought, hmm… surely one of the cell blocks must be defective? Since one spot got quite warm while charging, 30-40 degrees, it's not that much, but…
The designation for the part is SP-R16-033-A01. I'd like to order a part like this, but I can't find a suitable one. Can I use a different one? Or do I have to repair it? I wanted to avoid that, but if nothing else works, I'll have to go through with it. Thanks in advance…
I'm having a problem with my hoverboard, specifically with the BMS (battery management system) of a 36V 4400mAh Li-ion battery. Whenever I tilt the hoverboard too far, it abruptly shuts down and becomes unresponsive for several minutes. I recently purchased this new Li-ion battery in China, and upon arrival, it showed a charge of 39V….
Is there any way I can operate my keyboard without a BMS? Soldering a new chip on it won't work because one of the circuit paths is broken, and the BMS chip is only for the battery, right?
For a Bluetooth speaker project, I need a battery that delivers approximately 12-18V. For this, I would connect four 18650 cells in series. Now I'm wondering how best to charge them, as this is a tricky topic. I know that I need a BMS for four cells, but I'm not entirely sure how to charge…
I've had a Xiaomi 1S in my basement for quite some time. At some point he went out in the rain and has been acting completely crazy ever since. Now I had bought a new 3 Series as a replacement, but it was stolen in the first week. My guess is that the battery's BMS…
I build a battery box with 18650 batteries With an output voltage of 25.2V, that's 7 cells in series. I would use 8 cells per row. So, each cell will have 8×18650 batteries. Of course, I also need a BMS for this. The maximum output current is 13A. Should I look for a BMS for…