I recently purchased the 3.7V 4000mAh Lithium Polymer ion Battery and have been impressed with its performance thus far. This compact battery, measuring at 3.5 x 70 x 90mm, is a perfect fit for my various devices. I’ve used it with my MP3 player, smart watch, and even my dashcam without any issues.
The battery features a JST 2.0mm Connector which makes it easy to connect and disconnect from my devices. I appreciate the thought that went into this design, as it reduces wear and tear on the connector over time.
One important thing to note is that this Lithium Battery is a non-power battery and should not be used for power devices requiring high current such as UAVs, model aircraft, electric toys, power tools, or other similar items. It’s designed for low-current devices like the ones I mentioned earlier.
The battery’s capacity of 4000mAh provides a decent amount of power for my needs. I’ve found that it can comfortably last me a day with moderate usage, which is more than enough for my purposes.
In case you have any questions or concerns about the product, Amazon messages are available for contacting the seller. They promise to respond within 24 hours, which is a nice touch of customer service.
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