4000 mAh Power Banks Branded

High quality long life A-grade Lithium ion battery. Barttery life: can be charged  over 500 times. Circuit protection. Input power: DC 5V-1000MA. 
Output power:  DC 5V -1000MA. 3 in 1 connector. Individually packaged in biodegradable white box. Colours: Black, Silver. Dimensions: 93 (h) x 45 (W) mm.

Branding Options:
Laser Engraving 50 (w) x 25 (h) mm

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Material
battery lithium, metal power banks