Add a 5-year extended warranty to your Mango Power M Battery - extending the entire term of the limited warranty up to 15 years. You’ll receive an electronic copy of your limited warranty extension within three business days of placing your order. The limited warranty extension must be purchased in the first year of the Mango Power M Battery’s installation.
Purchase Notes: Please fill in the Serial Number (SN) for each M Battery Warranty Extension in the order remarks field.
How to locate a Mango Power Mango Power M Battery serial number？
(The Serial Number (SN) is the 24-digit number containing numbers and letters that is affixed on the case of your Mango Power M Battery)