Product Details

Technical datas for li-ion battery pack 12v 21ah:

Nominal Voltage	11.1V
Nominal capacity	21Ah
Discharge cut-off voltage	8.4V
Charge cut-off voltage	12.6V
Max. constant working current	15A
Peak Current	30A (for a few milliseconds)
PCM protection board	IC is Seiko brand
PCM protection board	MOS is AOS brand
Working temperature	-20ºC~55ºC
Packing	PVC package
Certificate:	CE, RoHS, MSDS, UN38.3

World foremost battery cells (Panasonic, Sanyo, Samsung, LG...):

Safety PCM (Protection Circuit Module) system:

Masspower company building:

Office and workshop views:

Payment and shipment:

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

Certificates: