This 3.8V 4000mAh Li-ion battery is a compatible replacement for TD Tech EP820. Compare the number printed on your current battery, its voltage, chemistry, dimensions and connector before ordering.
Special Order - Non-Cancellable - Non-Returnable - Additional Lead Time May Be Required On This Item.
Included: One replacement battery pack.
Current Estimated Delivery Date: 1-2 Weeks
Battery specifications
| Voltage | 3.8V |
| Capacity | 4000mAh |
| Chemistry | Li-ion |
| Energy | 15.2Wh |
| Dimensions | 67.60 x 52.70 x 12.50mm |
| Battery weight | 74g /2.61 oz |
Replacing your TD Tech EP820 battery
Compare the connector shape, wire arrangement and polarity with your original battery. Check all listed specifications; a similar model name or matching voltage alone does not confirm a fit.
Compatible equipment models
TD Tech EP820
Replacement battery numbers
TD Tech BTY4000LI15