My SL1310 Jump Starter/Power Pack was only used once (for a jump start)...then failed on me. (Item wouldn't hold a charge.) I think this product should have lasted longer! Upon communicating with the Schumacher organization, I was told that they couldn't help me because I didn't have receipt...but it was a GIFT! The explanation which was provided to me was very lame and didn't make any sense! As a result, I do not recommend this, or any Schumacher products to anyone. Schumacher been in business since 1947! Where is the Customer Service?! What about standing behind your product!? What about quality products!?
Ohhhhh..."Made in China." Now I understand!