- #1
airstrat
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I have a 4.5v LED strip 14.5watts (unknown amp draw; maybe 3amp) 30 LED 5050 per meter that runs off 3 AA Alkaline batteries. It runs fine for several hours (with the AAs) which is great but Id like to hook it up to a small power bank. I pulled out an old old power bank of 2200mAh 5v 1A output that's been sitting for some time without a charge so I charged it up for about 3 hours and then I spliced some wires of a USB connector and connected it to the strip light which ran for about 45 minutes before the lights went out.
It worked for a little bit but my main question is that can I hook up a larger battery of 5500mAh that outputs 2.1A 5v to the strip to make it last longer; looking for several hours of power before it shuts off. The battery I used was so old maybe it lost some its 'magic" over time sitting in the drawer or because I am not getting the amps needed across the LEDs or maybe I was loosing voltage as the juice ran out. I'm not a pro at electrical stuff but I am a quick learner and any advice would be appreciated.
Thanks in advance
james
It worked for a little bit but my main question is that can I hook up a larger battery of 5500mAh that outputs 2.1A 5v to the strip to make it last longer; looking for several hours of power before it shuts off. The battery I used was so old maybe it lost some its 'magic" over time sitting in the drawer or because I am not getting the amps needed across the LEDs or maybe I was loosing voltage as the juice ran out. I'm not a pro at electrical stuff but I am a quick learner and any advice would be appreciated.
Thanks in advance
james