Mini Power Module w/UBEC

The on-board switching regulator outputs 5.3V and a maximum of 2.00A from up to a 4S LiPo battery. when using a 6S plese make sure only to be drawing 1-1.5 Apms

more info here:

The Mini APM 2.0 Power Module is a simple way of providing your APM 2.5 with clean power from a LiPo battery as well as current consumption and battery voltage measurements, all through a 6-pos cable. The on-board switching regulator outputs 5.3V and a maximum of 2.25A from up to a 4S LiPo battery. and about 1- 1.5 Amp on 6s Note: The Power Module is only designed to power APM, a RC receiver and APM accessories (GPS, 3DR radio). It is not designed to power servos. Use your aircraft’s own ESC/BEC for that. Specifications: Max input voltage: 18V Max current sensing: 90A Voltage and current measurement configured for 5V ADC Switching regulator outputs 5.3V and 2.25A max 6-pos DF13 cable plugs directly to APM 2.5’s ‘PM’ connector

http://plane.ardupilot.com/wiki/common-measuring-battery-voltage-and-current-consumption-with-apm/

Note: The Power Module is only designed to power APM, a RC receiver and APM accessories (GPS, 3DR radio). It is not designed to power servos. Use your aircraft’s own ESC/BEC for that.

Specifications:

• Max input voltage: 26V
• Max current sensing: 90A
• Voltage and current measurement configured for 5V ADC
• Switching regulator outputs 5.3V and 2.00A max
• 6-pos DF13 cable plugs directly to APM 2.5’s ‘PM’ connector