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Pow'R Back'R With Dual Output

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Pow'R Back'R With Dual Output
Code: SC-EDR108T
Description: This Pow'R Back'R uses two 6V Battery Packs and two Heavy-Duty Double-Pole Switches to provide Dual-Redundant security to your airborne system, just like in full-size aircraft. This models had dual outputs which can be connected into two ports on the receiver to enable the provision of the full 6A to the receiver and servos. Ideal for power hungry digital servos.
With the Pow'R Back'R, you can tolerate a single failure (open-circuit, short-circuit, low voltage) in either battery pack, or switch, or battery wiring, without losing radio control.
The Pow'R Back'R continually monitors both battery packs and switches for the one with the higher voltage, and routes that to your Rx and servos.
You may combine different size packs. In practice, with two good packs, the EDR-108 draws power equally from both packs, adding their individual capacities. I.e., if Battery #1 is a 6V/600mAH pack, and Battery #2 is a 6V/1200mAH pack, you will have an 1800mAH power supply onboard, with at least 600mAH to fly on, in case of a failure.

Tech Note

  • This Pow'R Back'R is STILL the ONLY Redundant Battery system currently on the market that offers TRUE "ground isolation" between the two batteries.
  • This means that you can safely use any multi-output charger, or, two DC field chargers connected to the same 12V field box battery, to charge your two redundant batteries thru the switch harnesses, hassle-free.
  • Without this feature exclusive to the EDR-108, your chargers may become confused by the "common ground" between the batteries, and the batteries may end up being improperly charged.
  • Without the EDR-108, the only safe way to charge those two batteries is to unplug one of them from the switch harness or, use two separate, single-output AC chargers.
  • The EDR-108 is capable of handling up to 6 Amps continuous DC, and 20 Amps pulse (20ms ON / 40ms OFF). That's more than RC system wiring and connectors can handle. RC connectors are rated to handle a maximum of 3 Amps.
  • Most RC receivers have only one battery port, so the standard EDR-108 has one output cable. This does limit the total current that the RC system (receiver/servos) can handle. If is possible, in most receivers, to supply power thru more than one port, e.g. thru the battery port plus an unused servo channel, since battery power in the receiver is internally routed (paralleled) to all servo outputs.
  • To take advantage of this, the dual-output option, allows the Pow'R Back'R to supply a full 6 Amps to the receiver/servos.
Manufacturer: Electrodynamics
Weight (metric): 72 g.
Price: $75.00 (includes free postal delivery in Australia)
See also: Download the instruction sheet for further information.

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