Rechargeable 3.7v 440mAh Polymer Battery for GPS,Bluetooth

Specifications

Features of Li-Po battery: 

• High energy density                                                         

  Weight of liion battery is half of the  Ni-Cd  or NiMh battery with same capacity,volume is 20%-30% of NiCd battery and 35%-50%NiMh battery.

• High voltage

  Voltage of one liion battery cell is 3.7V(average value),it's equivalent to equivalent to three NiCd or NiMh battery cell connected in series.

• Pollution free

  Liion battery do not contain harmful metallic substances such as Cd,Pb,Hg and so on.

• Excluding lithium metal

  Liion battery do not contain metal lithium,so it's not limited by the rules on the aerobus of prohibit to carry lithiun battery. 

• Long cycle life   

   In the normal condition,the cycle life of lithium battery is more than 500 time, LiFePO lithium battery can reach to 2000 times

• No memory effect

  Memory effect is a phenomenon of the capacity of battery reduced during the cycle of charge-discharge.Lithium battery absent of this effect.

• Quick charge Charge with a 4.2V nominal voltage and constant current and voltage charger,it only take 1.5-2.5 hours to be full charged.    

Specification: 

PCM Parameter: 

1. Over charge protection

   Over charge detection voltage	Over charge detection delay time	Over charge release voltage
   4.3±0.05V	80-200ms	4.1± 0.05V

    

2. Over discharge protection

   Over discharge detection voltage	Over discharge detection delay time	Over discharge release voltage
   2.4±0.1V	40-100ms	3± 0.1V

                                                                                                                                                                                  

3. Over current protection

   Over current detection voltage	Over current detection current	Detection delay time	Release condition
   150±30mV	2-5A	10-20ms	Cut load

    

4.  Short protection

   Detection condition	Detection delay time	Release condition
   Exterior short circuit	5-50ms	Cut short circuit

    

 Delivery: 

• For small order we can ship the goods to you within 7 days,large order depend our stock,pls check with us.
• Within 7 days the goods will arrive at your door
• Well packed to protect your goods from physical damage.
• Any express you prefer is ok,all depend your choice 

Payment term:

1. Full payment before mass production for small order via paypal,western union,TT.
2. 30%TT before mass production,the balance before shipment.

After-sales service: 

12 months quality warranty,if there is any quality issue in our battery,we can send you  free replacement. 

 View of the factory: