I am glad that I bought this battery. The fits perfectly and without wobble, creak and creak. I bought an Alternative Model 1.5 years ago, but has less of power with more volume and weight, as this product! The "appropriate alternative part" has never really fit well and just sat under pressure and fortified in the housing. Because there is in this model no quirk here - 5 *****! I admit still prefer something more money and look forward not to notice of the product - neither rubber feet that I lose or contact problems caused by ill-fitting form. Thoroughly recommended!