Maxx Products International, LLC.

Gyro & Controllers for Electric Heli
Fail Safe
Insta Check RX Battery Checker

More Electronics Gizmos!     Technology & Price Breakthrough


ACC157 KP-Soar MSRP: $49.95
Special: $44.95

The KP-SOAR is specially designed for sailplanes. It monitors the Rx battery and report the results by gently swinging the rudder.

  • Rudder swings automatically when the Rx batter is low. This can be disabled for landing,
  • On-demand Rx battery test by rudder movement.
On-board Battery Checker

New design with
two dip switches!
ACC617 On-board Battery Checker

Special: $15.95

Size: 1.8" x 0.47" x 0.31"
Weight: 0.2 oz
Test Voltage: 4.8, 6.0, 7.2, 8.4 VDC

  • High resolution display with 10 high intensity LEDs,
  • Precise voltage measurement,
  • 2 dip switches for four test ranges,
  • Plug & Play design, no adjustment,
  • Ultra light weight and compact design,
  • All solid state, no calibration or adjustment necessary,
  • Compatible with all radio systems, some systems may require adapters.
On-board Battery Checker

ACC612 Insta Check Pro Rx Pack Tester

Out of stock Special: $33.95

  • 10 bit MCU IC for accurate voltage readings,
  • Large LCD display shows battery voltage, battery type, cell count and graphic capacity display,
  • Capable of measuring: LiPo/Li-Ion 1-7 cell (3.7V-25.9V) LiFe 1-7 cell (3.2V-22.4V) and Nicad/Nimh 4-8 cell (4.8V-9.6V),
  • The load test shows battery condition under 330mA load, 
  • Will test for out-of-balance condition,
  • Reverse voltage protection,
  • Universal Tx/Rx test harness included. The 0.1 spacing LiPo connector fits XH type balance plug, needs adapter for other types.