my cells average around 2420 mah (tested on imax b6, full cycle), so the claimed 2800 mah is unsurprisingly a lie. however, their capacity is still pretty good for the price. they don鈥檛 have the same low self-discharge technology as other brands, so they won鈥檛 hold a charge as long when not in use. i use them in a wireless mouse, and they get swapped out and recharged often, so it鈥檚 not a big deal.