Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Good looking Simple to use Four-bar working battery fuel gauge Moderate efficiency of 68% if phone charged to full, better if charged partitially. Very sturdy. Compact size compared to other 2x18650 housings.
Assembly was such a pain in the ass. At first I thought this can't be assembled att all due to bad quality plastics designs but little bending of clips and forcing it was done in 10 minutes. I think this can't be dissassembled without leaving marks and scratches but this is super cheap. Led "flashlight" is almost useless. It's brightness is as those keychain lights.
I own several portable batteries and this is clearly the best. This can't fit protected batteries, but this shouldn't be an issue since it has overcharge and overdischarge protection built-in. I'm using SKU: 180030 Panasonic batteries which stores the highest capacity of real 3,4Ah in 18650 casing.
This little thing can store a lot of energy in small size with quality batteries.
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