Biktrix batteries can have different connector types and output voltages – this will go over them.
For connectors, the male end refers to the end of the charger that plugs into the battery. The female end refers to the port on the battery that the charger is plugged into.
Your charger has one important specification- output voltage. This will differ depending on battery voltage. We have batteries with three different voltages - 36V, 48V and 52V. This will be shown somewhere on the battery. However, your charger will have a different output voltage shown on it. Here are the corresponding battery-charger voltage pairings:
36V Battery - 42.0V Charger
48V Battery - 54.6V Charger
52V Battery - 58.8V Charger
Your charger may also have a different number of Amperes (A) than in the images. This value is just the speed of the charger - more amperes corresponds to a faster charging battery.