AAA Cordless Phone Batteries Rechargeable Sanik 750mAh 10 Cells are a top quality replacement for your original cordless phone batteries fitted by the manufacturer. They have been made specifically for your cordless phone. You will enjoy maximum standby and talk time. Should the mAh rating on your current battery be higher or lower by 50mAh it will not affect the function of your phone.
These AAA Cordless Phone Batteries Rechargeable Sanik 750mAh 10 Cells are a Suitable replacement for:
AAA 700mah to AAA 800mah rechargeable NiMh LR3 Cordless phone batteries
A good comparison can be found here showing the Duracell product not the original BT product.