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1000mAH/1200mAH 3.7v Lithium ion Battery Li-ion Battery

Battery size possible to be little different 

Recharge Battery before use

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3.7v Lithium-ion Battery more correctly lithium-ion battery is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid one. High conductivity semisolid (gel) polymers form this electrolyte. These batteries provide higher specific energy than other lithium battery types and are being used in applications where weight is a critical feature – like tablet computers, cellular telephone handsets or radio-controlled aircraft.

Features of 1000mAH/1200mAH Lithium-ion battery :

  1. 100% brand new
  2. High quality and high capacity!
  3. Built-in protection circuit PCM for preventing overcharging or over-discharging
  4. Size: 5mm(H)*40mm(W)*65mm(L)
  5. Rating: DC3.7V 1000mAh
  6. Wire Length 6 inches.
  7. Charging current: standard charging, fast charging: 1.0C: 0.5C
  8. Standard charging method: 0.5C CC (constant current) charge to 4.25V,
  9. Then CV (constant voltage 4.2V) charge till charge current is less than or equal to 0.05C.
  10. The maximum charge current: 1C
  11. Maximum discharge current: 1C
  12. Discharge cut-off voltage: 2.75V
  13. The discharge temperature: -20 degrees C~+60 degrees C
  14. Charging time: 3-7hrs (standard); 3hrs (fast)
  15. Protection function: overcharge, over-discharge, over current, short circuit protection, over-temperature protection
  16. It can be recharged repeatedly
  17. Built-in protection circuit PCM for preventing overcharging or over-discharging.

Package includes:

1 x pcs 3.7v 1000mAH/1200mAH  lithium-polymer Rechargeable battery.

Lets be honest, battery voltage wasn't 3.7, its was like 4.1 fluctuating. Secondly the battery had some bumps over the surface, not sure is it safe to use without supervision or not, i wouldn't trust it in this condition. Initial voltage was absolute zero, and with 1A charger current was 0.79A for less than a minute and dropped drastically to 0.07. Can not use in reliable system, but thinking of some sort of tinkering with safety measures. I wish it could be better. But i am happy it came with self protection ckt, that can come in handy later.
The packaging was good, and the product was delivered a day after ordering. Overall Satisfied with the customer service.
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