8
votes
Making a battery power supply for a portable Raspberry Pi computer
I don't have much experience in smaller electronics
I strongly recommend that you incorporate an off-the-shelf power bank instead of spinning your own: a commercial product is safe, guaranteed to ...
- 23.9k
2
votes
How to force the FS312F (DW01A-G) battery protection IC to automatically enable itself when reaching the overdischarge release voltage or above
I was struggling with the same problem.
In my solution I have used the APX803L instead of the MAX809S. The APX803L has already a MOSFET inside which saves you one component.
- 21
2
votes
Can a 200 mAh 1C Li-ion pouch battery handle 500 mA draw spikes?
Without a datasheet or a pulse current rating on the battery and information on how long/often the ESP8266 will draw more than 200mA, it is impossible to 100% determine if the battery will suffer any ...
- 78
1
vote
Accepted
Concern About DC Input Current Compatibility: Will My DC-DC Converter Work with a 48V 120Ah Lithium-Ion Battery Pack?
In general*, when you consider a power source, you need it to be capable of delivering current that is at least the current the load needs. The source being capable of delivering more amperes is ...
- 9,466
1
vote
How do I know if this battery is dead?
There are ten holes.
Put a probe in hole 1, then the other in 2, 3, 4, 5, 6, 7, 8, 9, 10.
Put a probe in hole 2, then the other in 3, 4, 5, 6, 7, 8, 9, 10.
Put a probe in hole 3, then the other in 4, ...
- 4,987
1
vote
How to size parallel connections in a battery pack?
Am I sizing my parallel connections properly?
Theoretically yes, because, if all the cells are perfectly identical and all the wire lengths are the same and all the connections are perfect, then ...
- 23.9k
1
vote
Confused about this BMS
The wiring diagram is correct and the video is wrong.
And, by the way, do not solder directly to Li-ion cells! Buy cells with spot-welded tabs. Or get a spot welder.
what the purpose of those outer ...
- 23.9k
1
vote
Voltage Response of Equivalent 1-RC Model for a Lithium Ion Cell
Here is what should be seen. Simulated with microcap v12.
OCV does not seem to be a "power supply".
It should be a "charged" capacitor with a "charge" (voltage) value.
...
- 15k
1
vote
Is it safe to connect two 18650 batteries with different mAh capacities in series?
I have been doing it for ebike 36 V and no BMS. The larger cap batteries went extremely low when the bike was disconnected. I separated the two and charged them separately. I plan to join them back ...
- 11
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