Build simple LIPO charger

[almtmd]

Found the circuits from RCgroup forum.
Parts from SLT
Total cost about $15.00.

[PhiBeR]

That is what i build and still have!
Modded with Beeper + Pentium 2 Fan and Heatsink!

Works fine but somehow my charge rate reduced to 500ma only..

[Guest]

how many cell can it charge?

[PhiBeR]

http://www.shdesigns.org/lionchg.html

It's actually from SHDEsigns..
More instructions on how to set charge rate and charge voltage
can be found there..

PLEASE read thru carefully before building your own li-po charger..
Li-pos are very dangerous power packs!

[MicroHeli-Nut]

What i'm using....

[almtmd]

LIPO Charger

Safety Notes

1) Need to calibrate the output voltage before use.
1 Cell - 4.2v
2 Cells - 8.4v
3 Cells - 12.6v
Over voltage and over current may damage LIPO cell or the cell may explode.

2) Never leave home unattended with LIPO charging in progress.

3) Good to measure the charger output voltage before start charging LIPo cells.

4) Monitor for excessive heat in case of charger malfunction