![What would cause the 30 amp fuse to blow after a few minutes of usage? Blew 2 times. No issues when I had the stock battery. This is a 12v18 ah. Stock What would cause the 30 amp fuse to blow after a few minutes of usage? Blew 2 times. No issues when I had the stock battery. This is a 12v18 ah. Stock](https://i.redd.it/563wgdhmzq551.jpg)
What would cause the 30 amp fuse to blow after a few minutes of usage? Blew 2 times. No issues when I had the stock battery. This is a 12v18 ah. Stock
![90 pc 2,3,5,7.5,10,15,20,25,30 AMP Low Profile Micro Blade Mini Fuse Assortment Set APS Car Auto Truck SUV|mini fuse assorted|low profile mini fusemini low profile fuse - AliExpress 90 pc 2,3,5,7.5,10,15,20,25,30 AMP Low Profile Micro Blade Mini Fuse Assortment Set APS Car Auto Truck SUV|mini fuse assorted|low profile mini fusemini low profile fuse - AliExpress](https://ae01.alicdn.com/kf/S32075b8fcab8472196e829a306fb10755/90-pc-2-3-5-7-5-10-15-20-25-30-AMP-Low-Profile-Micro.jpg_Q90.jpg_.webp)
90 pc 2,3,5,7.5,10,15,20,25,30 AMP Low Profile Micro Blade Mini Fuse Assortment Set APS Car Auto Truck SUV|mini fuse assorted|low profile mini fusemini low profile fuse - AliExpress
![I think I blew the 90amp fuse by putting my battery in backwards and reversing the polarity. There was a small spark and I think I blew the 90amp fuse by putting my battery in backwards and reversing the polarity. There was a small spark and](https://f01.justanswer.com/jacksparrow1956/8bb56f12-95be-4e3f-bdee-be328beae71c_9798.gif)