"high endurance battery 

7,4 V DC 1100mAh

Made in China by Shen Zhen Henzens Technogy Ltd

MC-EX BATTERY3 

PLEASE PAY ATTENTION

REQUIRED BATTERY HAS ONLY TWO

WORKING CONTACTS LOCATING ON RIGHT &

LEFT SIDES OF THE BATTERY.

TWO CENTRAL HOLES ARE EMPTY

BATTERY HAVING 4 WORKING CONTACTS

ARE NOT ACCEPTABLE

" SHENZHEN HENZENS.NA.M9-1051-3600

 "ship's crane remote control battery

high endurance battery

7,4V DC, 2600mAh, 19,24Wh 

Lithium-ion Battery pack

Made in China by Shen Zhen Henzens Technogy Ltd

CMC320BL

standard GB31241-2014

" SHENZHEN HENZENS.NA.M5-1051-3600