DC 3.7V 4200mah 606090 rechargeable lithium polymer replacement battery for DIY 3.7-5V Electronic Products with Built-in 2-Wire Battery Replacement, mobile energy storage power supply.

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  • This battery is applicable to electronic products with DIY 3.7-5V less than 15.54Wh 4200mAh. Not applicable to high-power electric tools and model aircraft
  • 606090 rechargeable lithium ion polymer battery, nominal voltage 3.7V, full charge voltage 4.2V, capacity 4200mAh, power 15.54Wh, size 3.543 x 2.362 x 0.236inch(90 60 6mm) (L*W*T), Weight 2.963oz(84g) Maximum current 4A It can prevent overcharge, overdischarge, overcurrent, and short circuit.
  • It s consists of of large-capacity A+ lithium battery, Japanese Seiko IC overcharge and overcurrent short circuit protection board, 3302-24 high temperature resistant silicone cable
  • The red wire is the positive electrode + and the black wire is the negative pole - In some products, the original battery has no plug or the plug does not match. It doesn't matter. You can directly cut off the plug and weld it or use our heat shrinkable insulating sleeve to connect the wires of the same color.
  • If there are any quality issues within a year, please feel free to contact us via email for replacement.

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