Build a Li-po Alarm?
Hey I was wondering if anyone could tell me how to make Li-po alarms because I am terrible a keeping track of them and am tired of having to pay 10$+ plus S&H to replace them. so being able to build them from parts in the city would help a lot. There are a couple electronics and hobby stores around (RC and etc) so supplies shouldn't be a problem. Thanks
Note: I am looking to build one with an alarm I'm not too fond of the display types and it needs to fit in a battery buffer tube (the one from airsoft-depot)
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