USB Costume/Hobby LiPo battery charger. (For 3.7v/4.2v Lithium Polymer batteries)

Use this USB Lithium Polymer (LiPo) charger for hobby batteries.
I bought it cheap from Amazon $9.99

1S LiPo Battery USB Charger: https://amzn.to/45S6nfg

I got this to charge the 3.7v batteries I have to support electronics integration in my Star Wars helmets. I use these batteries to run things that are typically labeled as 5v but will also allow lower voltages (such as micro blowing fans, Audio, LEDs, …)
An example battery this works on: DC 3.7V 1300mAh 103040... https://www.amazon.com/dp/B09YQ2WJ75?...

For reference an 1100mAh battery came with my personal amplifier and mic and that lasted me all day on Halloween.

About this item
ONLY support LiPo 3.7V/4.20V 1S battery
Support 0.2A/0.6A charge current by switch button （ Suggest using 0.2A if you charge six at the same time and 0.6A if you only do 2）
USB interface input suggested range: 5V±5% on 0.5-2.4A, suggested 2.4A or above
Charger plug: Micro 1.25 and JST-PH 2.0, AKA mCX and mCPX, Charging max 6 batteries at the same time. ( Need to consider width of battery)
The 6 LED lights indicate the charging state of the six channels independently, LED solid indicates charging, LED off indicates full charged.