1. Keep the old battey on the bench until the job is done. You never know when you need to refer to old parts. After the job is done, then you can toss it.
2. You will need a Muli-Meter that has an Ohms (resistance) test and a Diode (continuity) test in order to check traces.
3. And, at a bare minimum, you will need a soldering iron, some Sn-Pb (Tin-Led) Flux core solder, and a desoldering brade or a desoldering pump/bulb/iron to remove the through hole parts that are soldered to the board.
4. Also, at a min, to fix any broken traces, you will need some 30 Awg wrapping wire, some wire snips, and some Hot Glue (or some dark green non-metalic acrylic nail polish).
5. To find bad chips, you need, at a min, you need a probe and some datashees (which are free online). But, there are so few chips invovled in the battery circuit that you hardly ever need one. You just replace the next chip, or part, in the series.
6. Good Traces look BRIGHT GREEN. Coroded Traces look DARK GREEN. Just look at all the other traces on the board. Note: Just cause a trace is DARK GREEN does not mean that it is causing the fault so that is why you need to test it. A bad Traces will fail a test however a "Good" treace will not.
7. Anways, if you're looking for someone to fix it for you, for whatever reason, then check with channelmanic.
