All Questions
8 questions
1
vote
1
answer
74
views
Powering 12 LED tea lights with recycled power adapter?
I have 12 tea lights that are each powered by a C2030 3 V battery.
Like many of us I have a box of various chargers and whatnot.
Is this as simple as finding one outputting 3 V and splitting it 12 ...
- 11
0
votes
0
answers
95
views
12V Alternator charger using MOSFET with 3 x 12V output charging serial connected batteries ( 3 x 12V)
I am planning of building charger for trolling motor that will charge from single alternator 12VDC three serial connected batteries with three individual 12V outputs. This is something that is ...
- 1
0
votes
2
answers
260
views
DIY charger: solar panels in series or in parallel?
I am working on a DIY project where I am thinking of using a small solar panel to charge my iPhone.
I know iPhone chargers usually are 5 W, 5V at 1 A.
I can see two small, portable, and easily ...
- 233
0
votes
0
answers
73
views
BMS battery build DIY help
I am making a battery charger for a speaker using 4 18650 3.7V batteries.
Now I know that I would need to get a 4S Lipo or Li-ion PCB, the only thing I don't understand is the current rating that I ...
- 211
-1
votes
1
answer
2k
views
DIY 4*18650 Batteries charger with TP4056 paralel problem with how to balance it
days ago I did this project like the pic which is a DIY for 4*18650 OR 6*18650 (NOW I MADE 4 AND LET`S STICK TO IT) Sony vtc5a charger 3.7 v with new tp4056 with protection (copied from one youtube ...
- 101
7
votes
3
answers
2k
views
Schematic for a lipo battery bleeder overcharge protector
OK, so I am building a 12v (really 11.1v) 10000mah lipo battery. I am going to use it on campouts to run things like 12v fans and car chargers and run other high-current devices that couldn't be run ...
- 71
1
vote
1
answer
1k
views
How charge custom Li-ion pack 36v 10s6p
I have 10x 6p 18650 batteries. 13AH.
I found a protection circuit.
My issue is that I don't know how to charge the batteries. I could use a power source but I got it from my school and it isn't mine.
...
- 11
0
votes
1
answer
223
views
Rewiring a 12V charger
I have a Windows tablet with a charger which crapped out. The old charger was 12V / 1.5A - fairly standard but it had a rare tiny pin connector. Rather than buy a new charger, I decided to cannibalise ...
- 103