Help! Charging problems

[Orange phase evo 5 lover]

My wife has a carrerra vengance e spec one of the first ones, it has a 3 pin plug, now it gets used alot I had problems with the python chargers port on the battery, not sure if it is just worn connection between the battery and the charger cable. Pin 1 and 2 doesn't have any voltage between them and when u put the meter over the I'd pin 3 and + pin 1. It reads - 19v which now has reversed the polarity of +pin1.
Is the charger broken or is it a bad connection

 

[saneagle]

My wife has a carrerra vengance e spec one of the first ones, it has a 3 pin plug, now it gets used alot I had problems with the python chargers port on the battery, not sure if it is just worn connection between the battery and the charger cable. Pin 1 and 2 doesn't have any voltage between them and when u put the meter over the I'd pin 3 and + pin 1. It reads - 19v which now has reversed the polarity of +pin1.
Is the charger broken or is it a bad connection View attachment 62709

That might be normal; however, you'retalking in code that I don't understand. Carrera chargers for the HESC system don't give any voltage for charging until successful comms have been established.

If your bike has the Bafang motor with standard 9 pin motor connector, it has a standard Chinese electrical system. When the battery won't charge on such a system, the first thing you do is measure the voltage on the battery's charge socket and output terminals, with the battery's power switch in each position.

 

[saneagle]

OK, I think I managed to decode your post. You have a Phylion charger, not a Python; and it has a three-pin pentagon (PEN) jack. You're not talking about the 3-pin mains plug. That's not one of the first ones, which had the multi-pin jack.

The pinouts are pin 1 positive, pin 2 negative, pin 3 comms. What happens on pin 3 is anybody's guess. It's most likely some sort of handshaking, though could be something as simple as a thermistor reading. Either way, the charger won't give any charge until it's happy with what's on pin 3. If you've damaged the jack, you can get replacements for a whopping £40. I would take my bike and charger to Halfords and ask them to check it out with a spare charger.

Pardon our interruption...