RC-Monster Forums - View Single Post - Turnigy Low Self-Discharge (LSD) NiMH AA's

BrianG · 03.03.2010, 06:40 PM

The next thing I am going to do is make a charger for these. Yeah, you can use your R/C charger, but I am also going to want something smaller for trips and such. I've already drawn up a circuit which uses a constant current charge (0.3A) with temperature peak detection. It will charge two cells at a time, but the circuit is simple enough that making banks of two to get 4, 6, 8, etc will be easy enough. Power requirements will be ~6vdc and ~0.35A for each bank of two cells. So, charging 4 cells at once will require 6v @ 0.7A, which cheap "wall warts" can supply.

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BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	03.03.2010, 06:40 PM The next thing I am going to do is make a charger for these. Yeah, you can use your R/C charger, but I am also going to want something smaller for trips and such. I've already drawn up a circuit which uses a constant current charge (0.3A) with temperature peak detection. It will charge two cells at a time, but the circuit is simple enough that making banks of two to get 4, 6, 8, etc will be easy enough. Power requirements will be ~6vdc and ~0.35A for each bank of two cells. So, charging 4 cells at once will require 6v @ 0.7A, which cheap "wall warts" can supply.