Datasheet

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CR2450 ‐ 650231
batteryshouldnotbe soldereddirectlytoequipmentwhichitmustbedoneonly ontabsorleads.
Thetemperatureofsolderingironmustnotbeover50degreeCandthesolderingtimemustnot
be more than 5 seconds; it is important to keep the temperature low and the time short.The
solderingbathshouldnotbeusedastheboardwithbatterycouldstoponthebathorthebattery
could drop into the bath.It should avoid taking excessive solder because it could go to
unintended portionontheboardresultingshortorchargeofthebattery.
 DoNotUseDifferentBatteriesTogether
Itmust beavoided for usingdifferentbatteriescollectivelybecausebatteriesofdifferenttypesor
usedandnewordifferentmanufacturerscouldoccasiondistortion,leakage,overheating,explosion,
orfire.
 DoNotTouchTheLiquidLeakedOutofBattery
In case the liquid leaked and get into the mouth, you should immediately rinse your mouth.In
case theliquidgets into your eyes, you should immediately flusheyeswithwater.In any event,
youshouldgotothehospitalandhavepropertreatmentfromamedicalpractitioner.
 DoNotBringFireClosetoBatteryLiquid
Ifthe leakageorstrange smellisfound,immediatelyputthebatteryawa yfromfireas theleaked
liquidiscombustible.
 DoNotKeepinTouchwithBattery
Trytoavoidkeepingthebatteryintouchwiththeskinasitwillgethurt.
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WARNINGforDisposal
There are different regulations in different countries or regions and please comply with those
regulations.In general, the insulating tape or friction tape should be used to cover the (+) and (‐)
terminalsbeforedisposal.Itisbecausethediscardedbatterystillhaselectriccapacityandwhenitis
intouchwithothermetalsormaterials,itcouldoccasiondistortion,leakage,overheating,orexplosion.
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WARNINGforCircuitDesignforBack‐upUse
Thebatteryisnotrechargeable.Itisimportantthatthediodesareappliedforpreventionofcharging
fromthemainpowerorotherbatterieswhenthe
batteryisusedforthedevicehavingmemoryorRTC
back‐up applications.In addition, the application of protective resistance is necessary as it can
regulate the current as shown in the figure below.The following points have to be paid attention
whenchoosingdiodesandprotectiveresistance.
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 Supplied
voltagetoload
Duetothe applicationofadiodeandaresistance,thevoltagegeneratedwilldropduringoperation,
youareremindedtopayattentiontothesedropsofvoltageforsuppliedvoltagetoload.
 Preventchargingbyapplyingdiodes
It is recommended to use the least leak current
 diodes.The charge d capacity owing to leak
currentshouldbemaintainedwithin1%ofnominalcapacity.
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