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Because they have internal resistance. Current flow through this internal resistance produces heat, just like current flow through ordinary resistors does. The current can be from use of the battery or charging the battery (if it is rechargeable). Usually the internal resistance of a battery increases with age, meaning older batteries tend to run hotter than fresh ones.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoBecause when the wire from the positive and negative side are connected to a load, as a blower motor, the current flow meets resistance and the wire gets hot. In this case you will need a larger diameter wire.
Wiki User
∙ 14y agoWhen the two sides of the bttery touch they get hot causing a chemical reaction.
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If D batteries and AA batteries are both 1.5 volts why are D batteries stronger than AA batteries?
The D Battery has more nikon in it
Why do telephone batteries not cell phone batteries get hot?
Telephone batteries commonly get hot because they are a form of lithium batteries. All batteries contain chemical reactions within them that produce some amount of heat, it is just that lithium batteries produce great amounts of it.
How many car batteries are in a ton weight?
Car batteries come in different sizes and weights.Car batteries come in different sizes and weights.Car batteries come in different sizes and weights.Car batteries come in different sizes and weights.
Do batteries that are arranged in series produce a higher voltage than batteries arranged in parallel?
Batteries in parallel maintain constant voltage across the load rather in a series, so it is better to arrange the batteries in parallel Batteries in series deliver a higher voltage, batteries in parallel have longer life use.
What is galvanized batteries?
Alkaline batteries are called that on account of containing metals out of the Alkali group. They're a subgroup of Galvanic batteries.
Why will batteries be warm when you charge them?
YES!!! due to flow of electrons the batteries become warm when they are charged
Is it better to store batteries in a cold or warm climate and why?
it's better to store batteries in a cold climate, e.g., the refrigerator
Can you replace cell phone batteries?
Feel the phone. Although most phones get warm to a certain degree during normal use, phones with dying batteries get unusually and noticeably warm even in standby.
Is it normal for a battery to get warm its charging?
Yes, rechargable batteries tend to get warmer when charged.
Why do batteries seem to charge after sitting?
They really don't recharge, you might get a little more life from them if they sit, also remove batteries from flashlights when not in use. Best bet is to replace batteries. Batteries that are kept in the cold have warm to room temperature before working.
Why would a car not start in cold weather?
batteries are rated for cranking amps and cold cranking amps.. in warm or hot conditions your engine oil is also warm and not thick so your batteries do just fine.. now in cold weather conditions your engine oil is thick so your battery doesnt have the potential to crank the engine
Do cold or warm batteries work better?
cold batteries work better because wires conduct better the lower the temperature <<>> Not so, lowering the temperature of a battery will cause the batteries chemical reactions to react more slowly, so if a battery is used at a low temperature then it has less cranking power.
You accidentally put your electronic cigarette in the washing machine so is it still safe to use?
Take out any batteries and leave it to dry completely in a warm place. When it is completely dry replace the batteries and try it.Sometimes if will work again. Sometimes not.
For what vehicles does Lincoln Batteries make batteries?
Lincoln Batteries make batteries for all makes and models of cars. Batteries they offer include: modern batteries, classic batteries, motorcycle batteries, leisure batteries and much more.
Which charges faster 1 large battery or 2 smaller batteries that can store the same energy?
Difficult one. One concern when charging is that batteries get warm by the process. Two small batteries have better ability to shed that heat than one big battery, so they can be charged "harder", and should be done faster. OTOH if it's a slow charger to avoid heat build-up, then charging two different batteries will take longer.(assuming you have to charge them in sequence)
What are secondary batteries?
Secondary batteries is the engineering name for batteries that can be recharged.
Do frozen batteries work longer then unfrozen batteries?
Frozen batteries last longer unfrozen batteries.
