YDL Battery

This battery model number was slightly different than the original but worked great.

shipping time was a little long but battery works great.

Self-protection circuit to prevent charging or discharging too fast.

I have a little Blue tooth speaky that mounts on my wrist. I us it while I walk the dogs. I live in the Sonoran desert near Phoenix. I normally charge the device in the garage. I found that the device wouldn't hold a charge. Opened the device and found the battery had swollen up. This was the exact replacement. Device is restored to like new. Don't charge these batteries at temperatures over 35C.

Dual sense works and battery life is better but as much better as i expected.

My father modded my controller already with extreme rate paddles and lights. Watch the videos online it's a doddle to install. First impressions, holds charge and lasts long. Felt a big difference in play time. Highly recommended especially for the price. Long term time will tell, might come back to update in 1year later

Numéro 1, en plein ce dont j'avais besoin, Un gros merci.

Batteries are installed in Aspire breeze 2 vaporizer. A little smaller than the original battery, but so far they are working great.

When I received 3 of these units, I fully charged them, and then put 2 of them in my discharge instrument to measure the capacity (a 24 hour test for each device). To my surprise, they both exceeded the 5Ahr advertised capacity (getting 5.2Ahr = 110% of capacity) This was a surprise because I've bought 3 different brands of the 18650 cells, and all of them yielded between 10-20% of the advertised capacity. Also, they cam in at $1.86 per Ahr, which is a very good value. I highly recommend these. (I've designed an ESP32 based LoRa measurement system for the field, and battery capacity is of utmost importance)

YDL store have been outstanding with my order super fast postage,good packaging
top quality product hence 5 star. great store first class.

Exactly what I ordered and fit perfectly!

3.7V 4000mAh 3377128 Rechargeable Lithium Polymer Battery Length 130mm

Great Battery! Solid, Durable, and Long Life. I highly recommend YDL battery.

Very pleased with the battery. It has more power than my old battery so will last longer. One suggestion: think about shipping with a wire connection clip that could be installed on original wires. My old battery wires were soldered so I couldn't just un-plug & plug-in the new battery. Shipping was about 2-1/2 weeks but this was not a problem.

YDL Battery Chat help me very fast.