--- product_id: 116263475 title: "502540 battery for Sena SMH 5 Motorcycles Bluetooth Headset" brand: "aolikes" price: "$28.67" currency: USD in_stock: true reviews_count: 7 url: https://www.desertcart.us/products/116263475-502540-battery-for-sena-smh-5-motorcycles-bluetooth-headset store_origin: US region: United States of America --- # 3.7V stable lithium polymer voltage 550mAh high-capacity power Plug & play PH1.25/2P connector 502540 battery for Sena SMH 5 Motorcycles Bluetooth Headset **Brand:** aolikes **Price:** $28.67 **Availability:** ✅ In Stock ## Summary > 🔋 Power up your ride and never miss a beat! ## Quick Answers - **What is this?** 502540 battery for Sena SMH 5 Motorcycles Bluetooth Headset by aolikes - **How much does it cost?** $28.67 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/116263475-502540-battery-for-sena-smh-5-motorcycles-bluetooth-headset) ## Best For - aolikes enthusiasts ## Why This Product - Trusted aolikes brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight & Compact:** At just 10 grams and under an inch, it’s a discreet powerhouse that won’t weigh you down. - • **Seamless Compatibility:** Perfectly fits Sena SMH5, SMH5-FM, SPH10H-FM headsets and Nextbase 312GW dash cams for hassle-free replacements. - • **Effortless Installation:** No soldering needed—just plug in the PH1.25/2P connector and get back on the road fast. - • **Long-lasting Power Boost:** 550mAh capacity keeps your headset and dash cam running longer without interruptions. - • **Reliable Lithium Polymer Tech:** Stable 3.7V voltage ensures consistent performance and longer battery life for your essential devices. ## Overview The AOLIKES 502540 is a 3.7V, 550mAh rechargeable lithium polymer battery designed as a direct replacement for Sena SMH5 series motorcycle Bluetooth headsets and Nextbase 312GW dash cams. Featuring a plug-and-play PH1.25/2P connector, it offers easy installation without soldering, lightweight design, and reliable power to keep your devices running longer and stronger on every journey. ## Description AOLIKES 502540 550mAh Battery Replacement for Sena SMH5 FM, SMH5D FM,SPH10H FM Motorcycles Bluetooth Headset, ICP40 25 40P Battery Replacementf for Nextbase 312GW Dash cam ## Features - 3.7V rechargeable lithium polymer battery 550mAh replacement for Sena SMH5 Motorcycles bluetooth headset battery, for Sena SMH5-FM and more. - 502540 battery, fit Sena SPH10H-FM battery replacement, Compatible with Nextbase 312GW Dash Cam Driving recorder and more. - The 3.7v 502540 Li-Po battery with a standard PH1.25/2P plug, you don't need any soldering skill to replace the battery of Sena SMH5 SPH10HD series Motorcycles bluetooth headdset now! - ICP40/25/40P battery for Nextbase 312GW Dash Cam HD Recording DVR Cam - Before replacing, please contrast with the old battery and check the polarity of the battery. Red wire connection power positive " +" , Black wire connect power negative pole "-". if is a reversed, you need position of interchange wires. - For Sena SMH5 battery replacement. ## Technical Specifications | Specification | Value | |---------------|-------| | Item Dimensions | 0.98 inches | | Battery Weight | 10 Grams | | Unit Count | 1 Count | | Battery Cell Type | Lithium Polymer | | Recommended Uses For Product | ICP40/25/40P 502540 3.7v battery replacement, Sena Smh5-fm battery replacement., Sena SPH10H-FM battery replacement., 3.7v 502540 lipo battery replacement, Nextbase 312GW Dash Cam battery replacement., Sena Smh5 battery replacement. | | Reusability | Sena Smh5 Rechargeable Battery Pack, ICP40/25/40P Battery. | | Battery Capacity | 500 Milliamp Hours | | Amperage | 2.1 Amps | | Voltage | 3.7 Volts | | Compatible Phone Models | smh10h headset battery | ## Product Details - **Number of Batteries:** 1 Lithium Polymer batteries required. (included) - **Brand:** AOLIKES - **Battery Cell Composition:** Lithium Polymer - **Battery Capacity:** 500 Milliamp Hours - **Recommended Uses For Product:** For Sena Bluetooth headset battery replacement ## Images ![502540 battery for Sena SMH 5 Motorcycles Bluetooth Headset - Image 1](https://m.media-amazon.com/images/I/51zLmWby7AL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly! *by R***S on April 4, 2025* 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. ### ⭐⭐⭐⭐⭐ Great Replacement for my Sena smh5 *by M***Y on July 3, 2023* I can not speak to the battery life just yet, however installation was a breeze#1. I Removed the 3 size 7 Torx screws from the Sena SMH5 unit. "Please Note remove the screws over a bowl in the event you drop one like I did lol"#2. Pull the other battery out carefully from the connection on the board and be mindful of the double sided tape on the battery it is sitting flush to the circuit board.#3. Check the polarity of the wires on the old battery and the new one to make sure that they match#4. Install the new battery if the wires match up back onto the circuit board.#5. I used some 3M double sided tape on the battery back to the housing not the circuit board when I placed it back together.#6. Lastly install the 3 size 7 Torx screws back in there place and then power on your Sena Smh5 unit to see if the lighting comes on as it should.Three other things you may want to take note of#1. If you drop the rubber charging cover " like I did " it does slip back into it's place#2. Make sure you do not over charge your new battery like I did my old one, as I had to do all of this because I overcharged the factory battery lol#3. Small hands and fingers will be helpful my large hands and large digits made it trying placing the battery back onto the board, not to proud to say I called my wife over to help with that part lolBest of luck and hope that this helps someone else ### ⭐⭐⭐⭐⭐ Perfect fit for Sena SMH5 or SMH5-FM *by O***Y on October 3, 2019* A bit of online searching told me this was the size, voltage, and capacity of battery I needed to replace the old stock battery in my Sena SMH5-FM headset.However, I was hesitant to buy this battery since there were no reviews. It caught my eye because it was less expensive than several other similar batteries that had fairly good reviews. Ultimately, I figured these batteries probably all come from similar factories in China, so I decided to give this one a shot.The battery was delivered in two days and was packaged well. On arrival, the voltage measured 3.94 volts which is normal for a partially charged 3.7 V lithium battery.I disassembled my SMH5 and was happy to see that the batteries were nearly identical in size. I was also happy that the polarity of wires to the plug was the same for both batteries. You will see in the description of this battery and in reviews for other similar batteries that occasionally the polarity of the wires is switched. If you get a battery like that, it's not a big deal. You can switch the wires yourself in a few minutes, but it was nice not having to do that.I secured the battery in my SMH5 using a small piece of double-sided tape and reassembled the SMH5. The entire process took me less than 10 minutes. I gave it a quick test run to make sure it was working, then plugged it in to fully charge.Once it's fully charged, I will take it through a few charge cycles to see how it holds up. If there are any problems, I will update my review. But based on my experience so far, I give it five stars.If you are buying this battery for a Sena SMH5 or SMH5-FM, you will need a size T7 torx (star) screwdriver to open the headset and a small piece of double-sided tape to secure the battery in the headset. There's a good write-up online if you need it. ## Frequently Bought Together - AOLIKES 502540 550mAh Battery Replacement for Sena SMH5 FM, SMH5D FM,SPH10H FM Motorcycles Bluetooth Headset, ICP40 25 40P Battery Replacementf for Nextbase 312GW Dash cam - EXTRACTME Motorcycle USB Charger, 6.8A Quick Charge 3.0 Dual USB Motorcycle Phone Charger with Voltmeter & ON/Off Switch, Waterproof Quick Disconnect SAE to USB Adapter for Phone, Tablet, GPS - Battery Tender Quick Disconnect USB Charger Adapter - Easily Charge Mobile Devices with 12V Vehicle Battery on The Go - Perfect for Camping Our Outdoor Adventures - 081-0158 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/116263475-502540-battery-for-sena-smh-5-motorcycles-bluetooth-headset](https://www.desertcart.us/products/116263475-502540-battery-for-sena-smh-5-motorcycles-bluetooth-headset) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-06-02*