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7. Battery and Rechargeable Battery Notes
Although use of batteries and rechargeable batteries in everyday life is a matter of course today, there are
manydangersandproblems.InparticularinLiPobatterieswithhighenergycontent(ascomparedtocon-
ventionalNiMHbatteries),variousprovisionsmustbecompliedwithtoavoiddangerofexplosionandre.
Therefore, always observe the following information and safety notes in handling of batteries and recharge-
able batteries.
• Keepbatteries/rechargeablebatteriesoutofthereachofchildren.
• Donotleaveanybatteries/rechargeablebatterieslyingaroundopenly.Thereisariskofbatteriesbeingswallowed
by children or pets. If swallowed, consult a doctor immediately!
• Batteries/rechargeablebatteriesmustneverbeshort-circuited,disassembledorthrownintore.Thereisadanger
of explosion!
• Ifyoudonotuseitforanyextendedperiodoftime(e.g.duringstorage),removethebatteries/rechargeablebatteries
inserted in the transmitter to prevent damage from leaking batteries/rechargeable batteries. Disconnect the drive
battery from the speed controller completely and take it out of the vehicle.
• Leakingordamagedbatteries/rechargeablebatteriescancausechemicalburnstoskin.Wearsuitableprotective
gloves when handling them.
• Liquidsleakingfrombatteries/rechargeablebatteriesarechemicallyhighlyaggressive.Objectsorsurfacesthat
come into contact with them may take severe damage. Therefore, keep batteries/rechargeable batteries in a suit-
able location.
• Neverrechargenormal(non-rechargeable)batteries.Thereisariskofreandexplosion!Chargeonlyrechargeable
batteriesintendedforthis;usesuitablechargers.
• Alwaysobservecorrectpolarityofbatteries/rechargeablebatteriesandtheconnectionofarechargeabledrivebat-
tery(noteplus/+andminus/-)wheninsertingthebatteries.
• Nevermixbatteriesandrechargeablebatteries!Usebatteriesorrechargeablebatteries,e.g.forthetransmitter.
• Alwaysreplacetheentiresetofbatteriesorrechargeablebatteriesinthetransmitter.Nevermixfullychargedbat-
teries/rechargeable batteries with partially discharged ones. Always use batteries or rechargeable batteries of the
same type and manufacturer.
• Abatterychargercorrespondingtobatterytechnology(NiMH,LiPo....)isrequired.Neverleave,e.g.,LiPobatteries
unattendedinanNiMHcharger!Thereisariskofreandexplosion!
• Asuitablebalancerisrequiredforchargingmulti-cellLiPobatteries(usuallyintegratedingoodLiPochargers).A
balancer(frequentlyalsoreferredtoasanequalizer)preventsoverchargingofasingleLiPocellbyinspectionofthe
individual cell voltages.
 WhenoverchargingaLiPocell(max.cellvoltage4.24V),theLiPobatterymaybloatorevencatchreorexplode!
• Onlychargeintactandundamagedbatteries.Iftheouterisolationoftherechargeablebatteryorbatteryhousingis
damaged or the battery is deformed or bloated, it must not be charged. In this case, there is immediate danger of
reandexplosion!
• Neverchargethebatteryrightafteruse.Alwaysleavetherechargeablebatteriestocooloffrst(atleast5-10
minutes).