Bests & Worsts Reviews from Amazon

Charger worked great for 47 days and about a dozen uses on new Interstate group 31 wet cell batteries. Then it popped just after plugging it in and no longer lights up or responds. I contacted NOCO, as it was just beyond the Amazon return period, to turn it in for their 5 year warranty, and waited 4 days for a response, and was informed the AC & DC leads must not have been modified for the warranty to be valid (which was not called out on any label, in the manual, or on their website). Cutting and soldering (with marine heat shrink) was necessary for my install, as their large 3/8" ring terminals, ferrite core, and ATO fuse holder were too large to pass through a grommet in one battery compartment - not an uncommon issue in boats I've worked on. I responded and they took another 5 days to get back to me confirming the warranty is void without ever even seeing the unit. The quality of my solder joint had nothing to do with this failure (fuse didn't blow), and the company refuses to even investigate their product.