Premium quality batteries 3.7v 4400

Specifications

1.batteries 3.7v 4400
2.High energy density, deep cycle.
3. OEM service.
4.Professional factory

Technical datas for batteries 3.7v 4400:

Nominal Voltage	3.7V
Nominal capacity	4400mAh
Discharge cut-off voltage	2.8V
Charge cut-off voltage	4.2V
Max. constant working current	3A
Peak Current	5A (for a few millseconds)
PCM protection board	IC is Seiko brand
	MOS is AOS brand
Working temperature	-20ºC~60ºC
Packing	PVC package
Certificate:	CE, RoHS, UL, UN38.3

 

Key components and selected materials:

 

Professional test system:

 

 

Payment and shipment:

 

Payment terms	T/T, Western union, Paypal
Lead time	Sample order: 3-5 working days
	Normal order: 10-15 working days
Shipping way	Air Express or sea transportation
Certificate	CE, RoHS, UL, UN38.3
Warranty	12 months

 

 

Quality and Guarantee:

Product standard: From design, material preparation to production, quality control, sales and customers service, MassPower batteries follow the ISO9001, CE, RoHS international standard.

 

Life span: All MassPower batteries use full A+ battery cells. No A or B grade low quality cells inside so that MassPower batteries have longer working life and larger capacity. We guarantee full and real labeled capacity.

 

Power management: All MassPower rechargeable batteries have built-in high quality PCB board, chrging protectors, thermal protectors and circuit breakers, effectively avoiding the over-charge, over-discharge, over heating and short circuit. You will have complate confidence on our products.

 

Office and workshop views:

 

Certificates: