Review on HQRP 42mm Long Battery for Braun 5000, 3745, 3761, 3762, 5000 Toothbrush Repair – 2000mAh Professional Care Triumph Sanyo 346 Sanyo346+ by Randy Gunnmann

I have a Model 3762 toothbrush which the product description says is compatible. I had to replace the battery because the original lasted 1 week and needed frequent charging. I thought it would be more convenient to get this battery than waiting for a replacement brought from France. However, the first battery I received did not charge at all. I soldered everything neatly, replaced the original battery and tried to charge it for 24 hours - no luck. It didn't even start, as soon as I press the power button the red light came on immediately. And then I decided to try again and replace the battery - I thought maybe I had a bad one. I soldered a second battery and got the same results. I will return both while waiting for the JDK battery to arrive from France. And just to mention that the contacts are probably 2x thinner than the original battery. I haven't had any problems with them though - they don't break if you're careful. but that was not my problem with this product.