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Great Planes - GPMP0520   735557505202 0735557505202
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Great Planes LiPo 3S 11.1V 2200mAh 25C T-Rex MX450 Heli
Great Planes LiPo 3S 11.1V 2200mAh 25C T-Rex MX450 Heli
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Tech Notes
This is the Great Planes ElectriFly Lithium Polymer Power Series
2200mAh 11.1V 25C Battery Pack with Balance Connector.
Specifically designed for and tested in the Heli-Max MX series
Also works in many other electric powered aircraft.


Balancing allows all cells to fully charge to 4.20V ensuring
maximum power from the pack, plus conditions the cells better
so they will last longer
Unique power technology offers high energy density, low weight,
long life, safe operation, and environmentally friendly chemistry


Great Planes ElectriFly Lithium Polymer 2200mAh 11.1V 25C Balance
Battery Pack with Balance Connector
Electrifly decals


Great Planes Equinox Cell Balancer (GPMM3160) or equivalent or
Charger with Balancing capability


Capacity: 2200mAh
Number of Cells in Series: 3
Rated Voltage: 11.1V
Max. Charge Voltage: 12.6V
Min. Discharge Voltage: 7.5V
Maximum Recommended Charge Current: 2.2 amps
Continuous Discharge Current: 55 amps (25C)
Discharge Lead: 12AWG 3.1" (80mm) long wire w/Deans Ultra Female Plug
Charge Lead: 24AWG 0.88" (20mm) long wire w/ElectriFly balance
Pack Dimensions: 4 x 1.4 x 0.9" (102 x 35 x 23mm)
Weight: 6.3oz (179g)


The Heli-Max MX series and the Align T-Rex 450 helicopters use one
battery. The T-Rex 500 helicopter uses two of these battery packs
connected in series with a 2 Deans Male Ultra to 1 Deans Female
Ultra Connector (GPMM3143).

READ the ENTIRE instruction sheet included with battery before use
ALWAYS use a LiPo-approved Charger
ALWAYS use a LiPo Cell Balancer
NEVER Charge over 4.20V per cell
NEVER Charge at currents greater than 1C
NEVER Charge through the "To ESC or "DISCHARGE" lead
NEVER Trickle Charge
NEVER allow to Discharge below 2.5V per cell
NEVER disassemble or modify pack wiring in any way or puncture cells
NEVER place on combustible materials or leave unattended during
ALWAYS Charge in a fireproof location
ALWAYS set charger's output volts to match battery volts
ALWAYS keep out of reach of children

jxs 01/15/08
updt jxs 4/07/08

– If you need more information, use these Great Planes resources –
Web Site:
Phone: 217-398-8970
  Postal Address:
Great Planes

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Accessories Needed

Accessories for the Great Planes LiPo 3S 11.1V 2200mAh 25C T-Rex MX450 Heli

Primary Accessories     Optional Accessories
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
 LXZKA2 Great Planes ElectriFly SafeCharge LiPo Charge Bag
Qty Discount Available
21.99   In Stock
Subtotal for this Group of Accessories: 21.99  

Primary Accessories     Optional Accessories

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