Mobile/portable battery charge

[Gremlin256]

Anyone know of a good brand that I can get ? Thank you

 

[vin619]

I've been using this almost 3 yrs now and its still alive, i get 3x charge out of it back when i had my s4. Never got to 0% yet on my g3 so i do not know how many times i can charge.

External Battery, New Trent iCarrier 12000mAh Portable Dual USB Por... Amazon.com: External Battery, New Trent iCarrier 12000mAh Portable Dual USB Port External Battery Charger/Power Pack for Smartphones, iPhone 6, Iphone 6 Plus, S5, Nexus 6, Note 4, Tablets, iPad Air 2, iPad mini 3, and more (Now w/Micro-USB charge por