Motion Control Specialists
with special interest in R/C model helicopter control
CSM Ltd, PO Box 101, Glossop SK13 5ZW, England.
email:       Tel: +44 (0)1457 854680
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spacer LiPo Battery Accessories

designed by JG in Germany
manufactured in the UK by CSM
The use of LiPo batteries has revolutionised electric flight. The power-to-weight ratio of this type of battery has meant that either longer flights or more powerful motors can be used. But their use requires care: over-charging can lead to overheating, fire and even explosions, and over discharging can ruin the pack.

CSM has been working in collaboration with designers JG to produce two little electronic gadgets to help you get the best from your LiPo batteries, safely.
Lipo Voltage Guard
LiPo batteries are easily damaged by discharging below 3v per cell, but this is difficult to judge when in flight. Even a single deep discharge may permanently damage your pack. The tiny on-board Lipo Voltage Guard operates in parallel with your Electric Speed Controller and will flash an LED or sound an alarm when your pack drops below a preprogrammed voltage threshold. The factory setting is for 3 cells , 3.0V per cell but can be set to any voltage between 2.4 and 3.5 volts, with 2 to 10 cell packs, using the supplied lead and your Tx/Rx.
Available with two warning systems - LED or buzzer

JG011..... LiPo Voltage Guard with LED .........11.15
JG012..... LiPo Voltage Guard with buzzer.......13.25
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Microprocessor controlled, auto calibrating, 10-bit A/D converter with digital signal processing.                    Download LED Guard manual
Operating voltage: 5V - 45V                                                                                                                       
Minimum threshold: 5V (2 cells, 2.5V / cell)                                                                                                  Download audible Guard manual 
Maximum threshold: 34V (10 cells, 3.4V / cell)
Precision: 1% or better
Current draw: 35mA during alarm state, <10mA otherwise
Weight: 4g
Size: 28mm x 20mm x10mm
LiPo Balancers for preventing overcharging and imbalance within packs are also available - see our Clearance sale - sold direct to the general public.

All our helicopter products are distributed worldwide through RC Models Distribution Ltd, and should be available from your local model shop or mail order company. To find your nearest stockist see the RC Models shops page

phone +44 (0)1457 860001 or email
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