HFX900 Chargers and the Bicha

The Charger built into the Butterfly transmitter HFX900 M2 5mm, was designed to charge cells with the 5mm magnet spacing and capacities ranging from 10mAh to 50mAh

The Charger built into the transmitter that is included with the Deluxe Starter Sets HFX900 M2 10mm, was designed to charge cells with the 10mm magnet spacing and capacities ranging from 80mAh to 160mAh

The magnet spacing was intentionally made incompatible between these two transmitters for safety reasons. It (intentionally) prevents you from connecting a small cell such as the LP30 to a charger from a Deluxe Starter Set and charging at a rate that would be unsafe for a small cell.

More advanced hobbyists who have a wider range of lithium cells to charge will benefit from the BiCha Charger. It allows for user selectable charge rates from 10mA to 150mA and will accept both the 5mm and 10mm standards. In addition it will charge two cells at two different rates simultaneously.