402030 3.7V Lipo Battery 180mAh 402030 Rechargeable Lithium Polymer Battery Pack with JST PH2.0mm Connector for Electronic Device

This high-capacity LiPo battery offers reliable performance for electronic projects. The 10000mAh capacity provides substantial runtime, while the integrated protection circuitry safeguards against overcharging, over-discharging, and short circuits. The JST PH2.0mm connector is well-secured and compatible with many common development boards and electronic devices. Build quality is solid - the cell is properly encased with good insulation, and the wire gauge is appropriate for the current rating. The voltage stability remains consistent throughout the discharge cycle, which is crucial for sensitive electronics. The battery arrives partially charged, allowing for immediate testing while still maintaining safe storage levels. The form factor is well-suited for many project enclosures, though you'll want to verify dimensional requirements as it's substantially sized. The connector pins are properly aligned and make positive contact, though adding a small dab of hot glue for strain relief is recommended for portable applications. Self-discharge rate is minimal during storage. One consideration is the charging time - it requires patience with standard charging rates to maintain cell longevity. While not the most compact 10000mAh option, the protection circuitry and build quality justify the size. For makers and electronics enthusiasts needing reliable portable power, this battery provides a good balance of capacity, safety features, and value.​​​​​​​​​​​​​​​​

This battery replacement for my Monster ClarityHD Bluetooth speakers was a perfect fit and incredibly easy to install. The process went smoothly, and the new battery is slightly smaller and lighter than the original—making it even easier to secure inside the speaker compartment. No issues at all, and the speakers work like new!

The product works great. I even cut the lines to solder them in place of the old one. It holds a charge for a long time. It is a direct replacement, so be sure to check for exact fit. Once you clip it into the harness, you will notice it sits in their tightly with very little movement. If you remove it to charge it, it'll feel the same way. That is how you know it is of high quality.

Those who are buying this specific battery with the connector to replace bad Keychron K4 batteries, this battery works with a small modification. The pinout on the connector is reversed. You don't need to cut the wires and modify it. Take a sewing needle and there should be a small tab on the plastic connector holding each of the black and red wire. Lift one of the tabs carefully and it should allow you to pull the wire along with the soldered pinout. Do the same for the opposite wire. Reinsert in opposite slots. Plug into keyboard and should work like new. Taking the pin outs from the plastic connector requires a bit of patience and finesse if you are doing this by hand. The tab that you pull up is really small and hard to see if you can lift it up, but if you have a sewing needle, you can definitely lift it up. it might be easier to place the plastic connector in a mounted vice while you have both hands to lift up the tab and pull the wire.

I purchased the Qimoo 606090 3.7V Lipo Battery to replace the battery in my Keychron K8 Pro, based on the listing’s claim that it uses a JST PH2.0mm connector. Unfortunately, the connector didn’t fit my keyboard, which was really disappointing given that compatibility was the main reason for choosing this model. While the battery itself appears well-built, it’s not useful if the connection doesn’t match. Make sure to double-check connector sizing before ordering. I ended up soldering the old battery's connector to this. Pros: - Solid-looking build quality - Good capacity at 4000mAh Cons: - Connector didn’t fit Keychron K8 Pro despite listed specs - Misleading compatibility—returned due to incorrect fit

Product works fine, but be warned that the polarity on the connection was backwards, and nearly nuked my electronics. Take time to double check what you get, and use tiny screwdriver/pin to remove the small connections and switch them up if needed.

Although slightly less in battery capacity the physical size was a good fit and I used this to bring my Skybell trim 2 back to life. Took some effort to splice in and transfer the heater strip over (probably unnecessary in Florida) but it works. Strangely the skybell stayed in the non-booted "yellow" state but I was eventually able to trigger a reboot with the app and then it started working normally.

Purchased this to put inside a solar node setup for meshtastic. Sadly even after charging the board couldn't receive any messages when powered by this battery but would work fine when powered by other brands (I wanted this one specifically for the 6000mAh size). Tried to initiate a return but assuming the battery to be of quality I had already adhered it to the enclosure with 3M tape which caused some damage when I tried to remove it. Disappointing all around.

Pefecto