AOLIKES 3.7v 720mAh Battery for Sena SRL, SRL 2 Motorcycle Bluetooth SHOEI Neotec II, GT-Air II, SP51, SP55 Bluetooth Communication System SRL 2-Wire Battery Replacement

Fit right in, correct plug, video instruction, longer life than stock, $16 rather than several hundred to replace

I replaced the battereis in two Harley-Davidson Sena 20S headsets. These replacements are larger capacity than the originals (950maH compared to 750maH). The new battereis provided enough run-time to allow me to listen to the stereo on the bike and intercom with my wife all day long when riding the Black Hills. After a full day the units charged up again in about 2 hours and ready for the next day. The replacement process is not difficult and there are plenty of Youtube videos to help you along. As a side note, one battery was bad on arrival . Amazon arranged an advance replacement order to get me a replacement with out having to charge for a replacement order and avoiding delays as a vacation trip approached.

I purchased this battery to replace the battery in my Sena 20S BT headset, which I have been using at least weekly since 2017. Last week while riding, I noticed that it was not holding a charge for more than a few hours, even though it had been charging overnight. I took it apart and discovered that the battery was “swollen” and needed to be replaced. I ordered this battery on Amazon after verifying the model number, etc. The battery dimensions and connector are identical to the SENA OEM one. It fit perfectly into the tray and the battery itself appears to be of similar quality as the OEM unit, at least from a visual inspection. I have not personally confirmed its advertised amperage. I plugged it in to verify that it was charging normally for about 20 minutes, before reassembling the headset. I found no indication of delamination, swelling, or felt any heat buildup whatsoever on the battery surface. So far, so good.If anything changes after a few weeks of use, I will update this review. Good luck.

These batteries last a long time. I've recently a bought a brand new PS4 controller and these outlast the battery in that. As many of the other reviews say, they are bigger than the original battery, so you have to cut some pieces from the plastic battery compartment thing in the controller. They'll take several hours to charge (longer than the original and the new version of the DS4), but they'll last me nearly a week of playing games a couple hours a day and Netflix/Hulu a couple hours a day. I don't know whether they'll fit the new DS4's (with the lightbar on the touchpad), but they fit the original ones.

I was a little hesitant, not buying OEM, but it was in stock and the reviews were good, for the 950 mAh model, so I ordered it. Install was easy, peasy, had it installed in about 3 minutes and charged it right up. Worked perfectly and lasts longer than the battery that was in my Sena 20 from new.I'm very pleased with the battery, I was a little hesitant buying the larger size, but I first purchased the smaller capacity one that was supposed to be for my unit and it was dying after about 4 hours or riding. Sent it back after the first ride and ordered this one, fit and worked perfectly and it lasts all day riding and then some.Great choice, easy to install (have to break a little plastic piece off inside the head set to install it or any of them, but that was easy), works perfectly!Will buy again, when this one goes down, probably in 3 years...

Perfect fit for the sena 20s and works like new. $10 to replace the battery or $250 to buy a new one? You would think sena would have smart enough to offer a replacement

Ok

Fits as described in an Evo 20s, cannot speak for longevity or charge hold time yet, but I will follow up with that information soon.-update-Was excited that this product worked and fit out of the box for my sena evo 20s. But the battery stopped charging after two charge/discharge cycles....very disappointed with this product