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{{Project | |||
|Name=Li-Ion (18650) battery capacity meter | |||
|Skills=1337 Skillz, Arduino, Coding, Hackery, | |||
|Status=Planning | |||
|Niche=Hardware | |||
|Purpose=Infra | |||
|Picture=Heapof18650cellsnew.png | |||
|Tool=No | |||
|Category=Electronics | |||
}} | |||
As of many hackerspaces we rescue 18650 cells from old laptop batteries and other sources | As of many hackerspaces we rescue 18650 cells from old laptop batteries and other sources | ||
Revision as of 03:03, 18 February 2017
| Li-Ion (18650) battery capacity meter | |
|---|---|
 | |
| Participants | |
| Skills | 1337 Skillz, Arduino, Coding, Hackery |
| Status | Planning |
| Niche | Hardware |
| Purpose | Infra |
| Tool | No |
| Location | |
| Cost | |
| Tool category | Electronics |
Li-Ion (18650) battery capacity meter
Heapof18650cellsnew.png {{#if:No | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:No | [[Tool Cost::{{{Cost}}} | }}
As of many hackerspaces we rescue 18650 cells from old laptop batteries and other sources
We do have a charger but no good way of testing the capacity of each cell before it goes into the parts pile
Making a capacity tester would solve this. One could buy a chinese unit from fleabay but where is the fun in that? :)
partlist:
- Arduino pro mini - Display - Button - TP4056 module - 18650 battery holder - 5v relay - DC current load \ - Logic level N chan mosfet - lm385 opamp - 50k 10 turn pot - 1 Ohm 5 Watt resistorrrr