802540 3.7v 900mAh lithium battery for Sena 10S series Sena 10S-01 ena Sena 20s series Sena 20s-01 Sena 20s evo Sena 30K series Sena 30K-01D Motorcycles Bluetooth Headset Battery Replacement Intercom

My replacement Sena 20s EVO battery arrived today and I enjoyed 100% success installing it.The 20s evo install instructions are "scary" but very doable.I used youtube video /watch?v=x311Sux8PpoThe sena 20s evo was NOT designed to have its battery replaced.But just because it wasn't designed to be replaced doesn't mean it can't be done.Install instructions such as the above make it possible.YES this battery is about 1/32" wider and 1/16" longer than OEM.HOWEVER it still "fits" without any heroic efforts.I varied from video in two places. a) I used a loop of duct tape to affix the battery to its case vs using the OEM 2-sided tape. I did this because a loop of tape is way thinner makes up for any extra thickness batter might have. b) I used a piece of scotch tape to pin the cable to the battery side as to keep it out of the way during top circuit board insertion.when I was done my unit turn on all the functions worked.I have only owned this unit for a few hours but I know it accepts a full charge and all the evo functions work.Time will tell how long the battery will last.My old battery was 4 yrs old and didn't last long anymore.The picture with a yellow-sided battery is OEM, the picture with the silver battery is its replacement.

I have a Sena 20s and I have replaced the battery and it fit perfectly and the connector fit perfectly as well.You will not go wrong with this battery for a Sena 20s.

Worked really well. The plug was identical no need to change like some videos Ive seen.I’m now able to go for long ride without recharging. I get typical 8 to 12 hrs depending on if i play music the entire time . Old battery went about 3 hrs. The new battery is awesome,

Installation was easy, however this was my second battery from them. The first one I got, plugged it it and it started to get hot a d caught fire, so I got a replacement, this one installed fine again, my sena 20s turned on just fine. But even after fully charging it didn't even last a trip to work and back. It's about a 20 minute trip one way, I turn it off at work, then my sena dies on me before I can even make it home. Not sure if I just got 2 bad batteries, but this has been my experience with the 2 I got.

Fit perfectly on my sena 20s and battery perfomance is great

It's in, and time will tell if it actually outlasts it's smaller original, or even match it... the procedure to change the SENA 20S was easy (YouTube vids), but the battery is also slightly physically bigger than original in a tight space. It went back together after some wrangling but that means slightly more pressure than there was originally, and a couple times, my jog wheel center button seemed to stay in the activated (down) position, but it isn't frequent and perhaps I need to go back in and adjust positioning slightly.The installed plug was exact for 20S so no soldering of original one like some other batteries.For Sena, don't forget you need a T8 driver, usually found in more extensive mini screwdriver kits.

This is a great little battery and it's small enough to fit in the available space on the Sena 20S. I installed my battery quickly but accidentally had one of the wires routed in the same space where the screw post is located. The pressure of closing the case broke one of the wires. So, then I had to drag out my soldering iron and resolder the wire. Advice: Don't get in a hurry and make sure the wires are free and clear when you close your Sena back up. Be aware that these wires are much more delicate than the original wires on the OEM battery.

Took to a battery plus store they installed in intercom & they work perfect. Pleased they worked.