🔋 Sony BP-HP550-11 Ni-MH 700mAh Replacement Battery: Enhanced Performance and Long-lasting Power Review

Came completely shattered. I read the instruction. Alas, it was not possible to shake even after 5 hours of charging. So it didn't work. Doesn't accept charge! Money down the drain!

Worked great; I bought replacement headset earpads and this replacement battery which made my 8+ year old Sony wireless RF headset like new. The battery fits the headset perfectly, took care not to shorten the life of the original and now I have many days of use before I have to throw it in the charging station.

I bought these for my Sony MDR 6000 headphones, they were too small and didn't fit. I went to a battery store in town and they told me I would buy two regular ni-hm aaa or ni-hm aa batteries for my headphones. I was surprised. I bought 2 regular nickel metal hydride batteries and they were fine. Sonia wanted $50 for it. I got four batteries for $10. They wrap the batteries in a plastic holder but they are either AA or AAA. Just buy the equivalent with the same chemistry and description and…

The registered battery had the exact part number/size/etc but when inserted into my wireless headset and left on the charging cradle overnight it would not charge. The first thing I noticed was that the red light on the charging station wasn't lighting up as usual. Inserting the old battery into the headset restored operation, albeit with the short charging times I experienced, and this was the reason for my order. When I requested a refund, I didn't see an option to send another battery. I…