Warranty Information Northstar

4 Year Full Replacement Warranty
NSB-AGM24
NSB-AGM24F
NSB-AGM27
NSB-AGM27F
NSB-AGM34
NSB-AGM34/78
NSB-AGM35
NSB-AGM48
NSB-AGM65
NSB-AGM78
NSB-AGM94R

3 Year Full Replacement Warranty
NSB-AGM24M
NSB-AGM27M
NSB-AGM31M
NSB-AGM34M
NSB-AGM65M
NSB-AGM31
SMS-AGM 8DK
SMS-AGM 24K

2 Year Full Replacement Warranty
SMS-AGM 80
SMS-AGM 220
SMS-AGM 400
SMS-AGM 480

A battery warranty is for manufacture defects in material and/or workmanship. Warranty does not apply to batteries that are severely discharged, have broken containers, covers, or terminals, have been overcharged or sulphated, or have been neglected or abused or are used in applications for which the battery is not designed.


The warranty covers the defective battery only. BatteryGuys.com is not responsible for any freight charges, installation charges, loss of time, or other consequential damage or cost incurred.


The warranty does not apply to batteries if their proprietary manufacturing code markings and/or serial numbers have been tampered with or removed.


If you feel you have a received a defective battery, please email us at support@batteryguys.com for instructions on how to proceed.