Hi all, I brought in another dumpster diving haul with me, a bunch of adapters, vinyl records, Sony record player, etc.
I also found a AA charger, but I’ve never seen anything like this before, and was wondering 1. What input voltage to use 2. Whether it has proper dV/dt termination and 3. Whether it is suitable for charging Eneloop LSD AA cells.
Any help would be much appreciated.
Here are some pics: (Sorry for the horrifying quality.)
At risk of inspiring you to start a fire, have you tried loading that thing up with batteries and poking around with a dmm? My wild guess is that it’s a power supply, not a charger, but don’t quote me on that…
Well the LM324N is an op amp, High Gain Amplifier, they don't look like a high current setup, it shows that each channel is capable of roughly 40 mA output, each chip has 4 channels
mc14174bcp is a flip flop, maybe some sort of DC to AC inverter...but not a very powerful one
If those holders are in series 1.2x12=~14.4vdc, if parallel 1.2-1.5vdc
It looks like it's missing something, is there anything on the bottom side of the PCB?
Between the two sets of 6 battery holders there is what appears to be a dotted line. On either side of the line are silkscreened labels “DISCHARGER PART” and “CHARGER PART”
The two sections are connected with jumpers or diodes or something, hard to tell from the picture.
The button on the discharger side has a label that can’t be read in the picture.
Each cell position has it’s own LED which looks yellow or green.
It’s not 100% clear to me that the banana jacks are part of the original design.