"Jewel" RC Generator / On-Board Battery Charger

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Weight:   3.7oz as seen not including mount
RPMs:     4000 to 18000
Output:  5 volts at idle, typically 14 to 18 volts in flight (unregulated).
Motor Capability:  About 70 watts
Rectifier:  Up to 10amps at 25 volts.
Regulator:  5.4v out, 3 amps continuous, 5 amps for 5 minutes.
Charging current decreases to 0 amps when battery reaches 5.4v.
Can be modified to supply additional output of 11.4v for AP rigs.
Alternate output voltages of 6.9v, 8.4v and 12.6v also available.

Axi Motor, shaft couplers, AC to DC converter, regulator,
universal output lead to receiver.  $215 for what you see
here plus shipping and paypal fees if applicable.


1) Standard Remote charge indicator LED: $10, Jumbo superbright LED: $20.
2) Custom mount for specific platforms: $25 - $55.
3) Bench power-up plug (use external power source): $10.
4) c-volt equivalent digital voltage display with JR style universal plug: $45.
5) Voltmagic battery monitor with Peak Low Voltage detection/Glitch Monitor, $40.
6) US Made Stator Gator for RC or PUH engines, $40.


Go to Voltmagic site for product details

RC Hobby Generator mounted on Xcell Gas helicopter

3 amps continuous output at 5.4 volt, 5 amps burst for 5 minutes.  Use with 4-cell NiCD or NiMH battery 1400mah to 2400mah capacity as a backup power supply and generator will keep it charged as you fly.
Generator outputs 14 to 18 volts as seen to the right depending on engine rpms. C-Volt not included and was only mounted and used as a verification of power output during initial tests. During this test, the helicopter was actually flown for 15 minutes doing 3D WITHOUT A BATTERY (not intentionally and only on generator power) so this system is PROVEN to work!
Will fit model helicopters such as the Xcell 1005 shown here, the Xcell Spectra-G, the Predator Gas, the Bergen Intrepid/Observer, Vario and Airstar International models.    Mounts include all necessary hardware.  Pricing as follows:  Xcell 1005, $45, Spectra-g, $55, Predator Gas, $40, Bergen Intrepid/Observer, $25, Vario Benzin/Acrobatic and ASI Mongoose, $45.

Contact Information

Click here for orders or questions:


Terms and Conditions
To order email rbort@juno.com for a quote or paypal $230 (fees & shipping included for US orders) to above email.  International orders please add $10 extra.

Alternatively, we will gladly accept your check or money order as well.

RC Generator Installation Instructions



C-Volt showing RX battery voltage hovering just over 5 volts under rx/servo load after rest. C-Volt shows 5.4 volt in flight under load. Green LED is my latest addition and is a charge indicator. Lights up only when engine is running to show that generator is working. Can be added to your system upon request.


Minair 1005 gasser mount.  Custom cut out of carbon by Minair and comes complete with all hardware necessary to mount generator.   For $45, you get a professional mount that will reduce your generator install time from a night to less than an hour.

Just browsing? Get in touch anyway and let me know what you think.