Specifications

rechargeable medical device batteries
1.long cycle life
2.high discharge platform
3.factory direct sale price
4.stable

Features for li-ion 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: 

Model	HHS18650
Nominal voltage	7.4v
Nominal capacity	4400mah
Size	thickness × width × length (mm)
	18±0.5×36±0.5×130±0.5mm (with PCM)
Advantage	High energy density Safety and reliable(with PCM) Long cycle life no memory Never explosion,stable performance,environment friendly capacity and size could be customized
Weight	about 200g
Max charge current	1C
Charging method	charge with constant current 1C to 8.4v,then charge with constant voltage 8.4v, till charge current less than 0.01C
Max discharge current	1C
Discharge cut-off voltage	6V, the over-discharge detection voltage of PCM
Operating environment	Charging, 0°C ~ 45°C ; 65±20%RH
	Discharging, -20°C~60°C ; 65±20%RH
Storage environment	-20°C~45°C
	65±20%RH
	storage for a long time(>3 months) and the storage condition shall be:<35°C;65±20%RH;
CycleLife (80% Prime Capacity) :	>500times
Charging Attention	Charging current and charging voltage should be less than specified in the Product Specification.
	The charger shall be designed to comply with Specification.
	It is dangerous that charging with higher current or voltage than Product Specification may cause damage to the cell electrical,mechanical safety performance.

 

PCM Parameter: 

1. Over charge protection

   Over charge detection voltage	Over charge detection delay time	Over charge release voltage
   8.6±0.05V	80-200ms	8.2± 0.05V

    

2. Over discharge protection

   Over discharge detection voltage	Over discharge detection delay time	Over discharge release voltage
   4.8±0.1V	40-100ms	6± 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-sale service: 

 

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