Bests & Worsts Reviews from Amazon

This jumper worked great when it worked. I used it about 5 times in 2years. Then one day, I plugged it into charger and it won't charge. The status light blinks, instead of indicating a charge. So as with everything broken thing, I took it apart. It looked like a typical SLA pack which was not too surprising. However, revisiting this product description, the SLA is not the "PROFORMER BATTERY" as described. (see the uploaded images) Either way, upon further research, the "bb-battery" HR9-12 is a somewhat special high discharge SLA, characterized by the B1 connectors, not the typical F2. The spec sheet for this battery stated 120A max discharge (how do they claim that to be 900CCA?!?). A replacement for this high-discharge battery is found to be $25. I'm not really disappointed because its not the "PROFORMER" battery, but I'm disappointed because this is dead in 2 years.