- Brand: Samsung
- Model: 40T
- Size: 21700
- Nominal Capacity: 4000mAh
- Nominal Voltage: 3.6V
- Maximum Voltage: 4.2V
- Discharge Current: 30A Maximum Continuous
- Style: Flat Top
- Protected: NO, UNPROTECTED
- Approximate Dimensions: 21.1mm x 70.4mm
- Approximate Weight: 66.8g
This cell delivered 3962mAh and 3985mAh in my capacity tests. Judging by Samsung’s “40T” designation for it I am sure its nominal/typical capacity rating will be 4000mAh. However, its guaranteed/minimum rating is always lower than the typical/nominal rating and will probably be 3800mAh or 3900mAh.
Customer ReviewsWrite a review
Have been using this model/class of batteries for 8 months, which is why I bought more as backup.
At this point I can't fault them. 8 months old & still holding full capacity after recharging every 2 days.
I have absolutely no reservations about this product.
Great service. Fast shipping.
Will buy again
Thanks for the batteries.
Excellent batteries but even better is the service from the folks at VAPR. Just perfect 👌🏿
Big battery much power very strawng
No but really fantastic battery, always choose samsung cells over other brands, feels like I always know I'll get the highest quality