The T70-JR is a high-performance digital dual battery backer (5–8.4 V, up to 15 A continuous) with advanced telemetry features. It contains a charging circuit and touch switch functionality. The device is ideal for mid-size models where high-voltage servos are used without voltage stabilization.

Voltario T70-JR is suitable for models equipped either with dual receiver batteries or with an ESC battery eliminator circuit (BEC) used as a primary power source, combined with a small backup battery. The device prefers its primary battery input, while in case of voltage drop it automatically switches to the secondary input. The charging circuit may be optionally enabled to charge the secondary battery from the primary input/BEC.

T70-JR is designed to turn on/off the electronics in your model, it can replace a mechanical switch as well. The device remembers its last operating state, and if the battery is accidentally disconnected, the T70-JR will automatically boot up again as soon as the battery is connected again.

The input and output cables of the T70-JR are 0.5mm² (20AWG) twisted cables with standard JR/UNI connectors.

Features

• Intelligent dual battery backer/multiplexer with configurable voltage switchover threshold.
• Touch switch function. Optionally, the possibility of connecting a magnetic, mechanical or electronic switch or button.
• KAVAN/FrSky FPort, Duplex EX, Futaba S.BUS2, Multiplex MSB, Graupner Hott, PowerBox P²Bus telemetry support (current, voltage, capacity of both battery inputs).
• Optional charging of the secondary battery.
• Remembers the last operating state.
• Minimal standby current drain (100 µA).
• Two expansion ports that allow connecting additional Duplex EX/EX Bus sensors. Alternatively, the ports offer digital inputs/outputs functionality.
• Configuration through the transmitter or MAV Manager PC software.
• Firmware updates.

The set contains: T70-JR, manual.

KAVAN Smart PRO T70-JR Dual Battery Switch w/ telemetry expander is manufactured in Czechia by the company MAV Sense s.r.o.

Online instruction manual: wiki.kavanrc.com