Yoshizen's Blog

Battery Charger


I’ve got numerous number of Battery Chargers and I made quite a few by myself, since I’m buying many Battery type tools etc. = its own charger comes with.  On top of it, I’m using many photo flashlight, LED ring light etc etc. so that, I’m a big user of the battery and its chargers.

But here I’ll talk only about the Chargers came from Lidl. — (As far as I know, Lidl sold 2 battery chargers (Ni-Cd, N-MH single type battery) in the past 10 years or so, and I’ve bought and used both of them. 

Lidl sells the things really cheap = it’s no doubt but the reputation is

“Half of the goods we bought, may not be used and the rest of the half would break down within 6 months”. —– Still we may not bother to claim a money back, because they are anyway so cheap and we may not bother to keep and find the receipt.


Their larger, universal type charger could show “Start fine” — but one of the charging post had stopped to function. (Photo right)


And the more compact type charger (only for AA and AAA) started to make a big noise from its cooling fan and one post stop to charge, then burning smell came out!  

(Incidentally, the photo right showed the plastic cover of the battery shrunk and exposed the metal can = because of the heat-up with a rapid charge = it could cause a short-circuit and a fire)


I check the inside circuit and found one transistor has been burnt out.  Its small SMD transistor  HJ31 was a common PNP transistor though, it’s not easy to replace it = we can not buy just one, but may be 100,  if not 1000 in one lot.  

Still, common PNP, SMD transistor could be replaced by an old common PNP transistor. (50V, 10~50Mhz type though, it was not in a critical Hi-frequency circuit but simple on-off) —– So, I replaced it with an old transistor. = It’s worked perfect.   😀

PS :   When I talked about this repair work to the computer geeks at the WW meeting, they responded with rather typical view, saying that normally the people do not think to repair the equipment using such old style transistor. — Then, I realized that this repair work was the Zen response.  With normal thinking, people wouldn’t conceive such idea to repair without having an identical component.  Yet still, completely open Zen mind could say Why not ! = Why we needed to be confined to one idea.  As there may not to be any idea to restrict us.  All those idea, restrictions are our own making in the mind. — unless we try, we never see a possibility, even if it might be only one in million.   (If you think, the Zen is to twist the leg and the enlightenment is How to giveup.   YOU were wrong.   Zen and Buddhism IS the matter, How to OPEN the eyes)


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