charging/desulfate Pb battery - displays wrong voltage

[Igor Pichugin]

Hi everyone,

I'm trying to desulfate my car battery with iMax-B6. The proper way to do that  is to create short pulses of high voltage ~32v (see link below). Unfortunately iMax doesn't have that feature, so I decide to use Pb constant voltage 22v/11c. The weird thing that iMax shows ~22v, even if the real voltage is only ~15.

How to Desulfate a Lead Acid Battery - https://www.youtube.com/watch?v=IRHR9EaxSgE

[diggit]

There can be 2 reasons:

- not properly calibrated charger

- voltage drop on cables/connectors - make sure that charger-battery path has minimal resistance, now it looks like 3.5 Ohms.

[Igor Pichugin]

Charger was calibrated - Li-po, Ni-Ca with delta-V no problem. Even Pb is OK, but only if battery is 12v and set-up is also 12v/6c. I used 22v/11c set-up with 12v car battery to  desulfate it.

connectors have resistance of 0.2Ohm 

[Igor Pichugin]

little live hack to reduce the cable resistance

[Igor Pichugin]

good video of how to desulfate 12v car battery with imax - https://www.youtube.com/watch?time_continue=215&v=XLB6WVrizug