Bests & Worsts Reviews from Amazon

Received this as a gift for Christmas, at first I loved it. I thought it was easy to use and deffinetly had enough power for small hobby projects. Then about a week ago I noticed it ran out of battery life very quickly. I would only get 10-15 minutes of use after having it plugged in charging overnight. Today the battery charger kept going dead like it was losing power. I checked my outlet 122vdc polarity was correct, I plugged my 12 volt ion craftsman charger into the plug and it worked perfectly so then I reseated the dremel battery and plugged it back in saw a small arc from the charger and its dead. I probably had a total of 1.5 hrs of use on it.