Alum gel battery/Lead plate cell/Motor circuit
Following the videos by Lidmotor regarding lead based cells: Video shows an at least partial rejuvenation of a completely dead and nonchargeable gel type battery, working high rate charge lead plates cell and a modified circuit for a self starting pulse motor. When a gel battery dies, it dies and gets thrown out. This one has a bulge on one side (you can see how the model numbers don’t line up in the picture at the end of the video) and has never charged past 2V, returning quickly to under 1V and microamps current – however, it was discovered with this one that the gel retaining membranes had completely dried out. Damage was apparent, by the way pieces simply fell off it when being opened up ! After neutralising with distilled water and baking soda (for pH7), the battery has been immersed in an Alum/distilled water bath. The battery has returned to 4.4V so far and is usable again at that voltage. With use and over time, I expect the available voltage and current to climb – to wherever the original plate damage and missing plates now dictate. The 2 removed lead plates will normally charge from 2V garden light solar panels, but for this demo were put on ‘super charge’. After a few seconds, 1.3V and 20mA are available for some minutes of running items like the pulse motor. The pulse motor circuit is built up on a 1000uF capacitor around the top of it. a 3 magnet rotor does the spinning (I didn’t have 4 magnets). The coil is 750 winds of 36AWG, wound as a conical shape, with …
