Great Planes GPMM3318, GPMM3319 User Manual

™

LIPO BALANCE CHARGER

READ THIS ENTIRE INSTRUCTION MANUAL TO LEARN ABOUT

SPECIFIC FUNCTIONS AND FEATURES, AND SAFETY INFORMATION.

INTRODUCTION

The ElectriFly™ LiPo Battery Charger is great for simple balance charging of 3-cell lithium-polymer batteries for small
electric models. Only charge batteries with 1500mAh capacity to a maximum of 2100mAh.

SPECIFICATIONS

Input voltage: 11.7V-15V DC
Battery types, # cells: 3 lithium-polymer cells connected in Series (11.1V LiPo)
Charge current: 800mA maximum
Charge method: CC-CV (current drop-off termination)
Minimum battery capacity: 1500mAh
Status indicator: Two LEDs; one green, one red
Input connectors: polarized DC power jack for DC input
Output connectors: one 3S balance plug
Case size: 2.18" x 1.13" x 3.26" [55 x 28 x 82mm]
Weight: 2.5oz. [72g]

SPECIAL FEATURES

• A very economical, portable and simple way to balance charge LiPo batteries

• Specifi cally designed for 3-cell lithium-polymer batteries only

• “Constant current / constant voltage” charge method

• Automatically starts charge upon connection of battery to the balance plug

• 800mA maximum charge current requires no adjustment

• Twin LEDs indicates charging status

IMPORTANT PRECAUTIONS

• Charge only lithium-polymer (LiPo) rechargeable batteries that are 3S (3 cells in series) 11.1V nominal voltage, from
1500mAh to 2100mAh, which have a balance connector.

• Do not attempt to use this charger with NiCd, NiMH or different types of Lithium-Ion batteries as they are not compatible!

• Do not leave the charger unattended while charging. Disconnect the battery and remove input power from charger
immediately if either becomes hot! However, it is normal for the charger get warm.

• Disconnect the battery from the charger immediately and remove to a fi reproof location if the battery begins to swell
or smoke!

• Only use the included car adapter or approved AC adapter to power the charger.

• Do not allow water, moisture or foreign objects into the charger.

• Do not block the air intake holes, which could cause the charger to overheat.

• Do not place the charger or any battery on a fl ammable surface or near a combustible material while in use.

• Do not charge on a carpet, cluttered workbench, paper, plastic, vinyl, leather, wood, or inside an R/C model.

• Never charge inside a full-sized vehicle.

• Always disconnect charger from input power when not in use.

• Do not attempt to charge a battery if it is swollen or hot.

• Keep out of reach of children.

CHARGING BATTERIES

IMPORTANT!! ALWAYS charge a LiPo battery in a location that is fi reproof. NEVER leave the battery unattended
while being charged! If the battery feels warm during charge, remove the battery at once and disconnect the charger
from the power source.

Use only approved power input accessories – the included car adapter and AC adapter (also available separately
GPMM3310)

To charge a battery:

1. Connect input power to the charger. The GREEN LED will be lit, indicating standby mode. The RED LED will be OFF.

2. Connect the battery to be charged to the balance plug. The RED LED will also be lit, and remain RED during
charging. Both LEDs should be lit solid while charging.

3. When the battery is fully charged, the GREEN LED will turn OFF. Remove the battery from the charger at this time.

4. Charging time depends on level of discharge and capacity of the battery. To estimate how long it should take to
charge an empty battery, divide the capacity of the battery in mAh by the charge rate in milliamps:

800mAh battery / 800mA ~ 1 hour
1600mAh battery / 800mA ~ 2 hours

LED scheme – Use this table to determine charge action:

RED LED GREEN LED Action

OFF Solid ON no battery is connected
OFF Flashing conditioning battery
Solid ON Solid ON battery charging
Solid ON OFF charge complete
Flashing Flashing ERROR

Possible sources of battery error may include a highly unbalanced pack, charger timed out, or one cell in the pack which
is low voltage. In the case of a battery error, please remove the battery pack from the charger and inspect it carefully for
swelling or any other damage, such as broken wires.

1-YEAR LIMITED WARRANTY – *USA AND CANADA ONLY

Great Planes® warrants this product to be free from defects in materials and workmanship for a period of one (1) year
from the date of purchase. During that period, Great Planes will, at its option, repair or replace without service charge
any product deemed defective due to those causes. You will be required to provide proof of purchase (invoice or receipt).
This warranty does not cover damage caused by abuse, misuse, alteration or accident. If there is damage stemming
from these causes within the stated warranty period, Great Planes will, at its option, repair or replace it for a service
charge not greater than 50% of its then current retail list price. Be sure to include your daytime telephone number in case
we need to contact you about your repair. This warranty gives you specifi c rights. You may also have other rights, which
vary from state to state.

For service on your Great Planes product, warranty or non-warranty, send it post-paid and insured to:

HOBBY SERVICES

3002 N. Apollo Drive, Suite 1

Champaign, IL 61822

[phone]

*For warranty and service information if purchased outside the USA or Canada, see the additional warranty information
insert (if applicable) or ask your retailer for more information.

www.greatplanes.com

www.electrifl y.com

Contents © Copyright 2008 Made in China GPMM3318/19MNL V1.0