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The Youmile 5PCS 2S 3A 7.4V 8.4V Lithium Battery Protection Board is a high-performance BMS PCB designed for lithium battery cells. It features robust protection mechanisms, including overcharge and overdischarge safeguards, ensuring your battery operates safely and efficiently. Each package includes five protection boards and a nickel strip, making it an essential component for DIY battery projects.
| Manufacturer | Youmile |
| Part number | DR-YM-609 |
| Item Weight | 15 g |
| Product Dimensions | 200 x 100 x 500 cm; 15 g |
| Item model number | DR-YM-609 |
| Colour | Black Blue |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Battery Cell Type | Lithium |
G**H
Please read the information.
Like a few others I've seen in the reviews, I had no output once the batteries were connected. I decided to return the boards as faulty however, on reading the information in the advert it said that if no output then charge the batteries through the board at 8.4v (2x 4.2V) I did this and after a couple of minutes I switched the charge off and then measured an output from the board. Lesson learned! read the data. I hope this helps someone.
J**Y
Yeah fine.
Not much to say, 5 bms modules with some welding strip
R**D
Works well - Useful when building replacement packs
Nice little boards. I am using these to build replacement packs to use in place of some existing NiMh packs.These board allow me to continue using the existing internal charger safely. An added advantage is that the packs built with recovered laptop 18650 cells have considerably more capacity than the originals.To make soldering easier, it is a good idea to clean the solder pads with a little isopropanol or contact cleaner before attempting to solder to them.No pretty blinky lights on the board, but mine cut off the charge when the pack has reached 8.4v as expected.The supplied strip is ok as well, although I didn’t need it as I have plenty of nickel strip already.
R**6
Does the job
Used to repair a battery management charge issue on a 4000 lumen led work lamp site work light
C**U
fire hazard. deffective
when connected to the battery the circuit board went on fire. 3 out of 5.
A**C
No idea of input voltage
Rubbish instructions
D**R
works fine
The board I used from this multi board package, cuts the power at around 6v, which is good, not sure why spec says it is 4.6v.
T**Y
Good
Good very small units, work perfectly
G**I
funziona senza problemi
fa il suo lavoro
A**R
Balancer funktioniert top - works perfectly
Balancer mit Schutzfunktion arbeitet einwandfrei - Circuit works perfectly with all functions described.
J**E
Justo lo que buscaba
Perfecto para la carga balanceada de dos unidades 18650
Z**C
OK
Kontakterna flyttar på sig av värme när man ska löda på kablarna
M**N
Activation nécessaire après installation
Après mise en place, le circuit semble ne pas fonctionner (0V sur P+ P-). Mettre en charge qq secondes et le circuit fonctionnera correctement.Le feuillard fourni est trop large pour montage sur ce circuit.
Trustpilot
1 day ago
2 days ago