Divide the Amp-hour capacity of the battery [22] by the current draw in Amps [65 mA = 0.065 Amps]. That will give you the number of hours the battery will last. If you want to convert that to days, divide again by 24 [the number of hour in day].
The head lights are the biggest long term drain on your battery. (The starter is a heavier drain, but you can't leave it on for very long.)
Well, if you listen to music on the device for long periods of time, that will drain your battery quickly and also if you have your brightness set at full.
No set answer to that. it depends on the capacity of the battery and the power drain of what the battery is connected to.
Rechargeable batteries usually last 300 to 500 cycles which is when a battery is at 100%, then is drained to 0% and charged again. Even if you do not drain it completely and recharge the battery, it is still considered a cycle.
The Nintendo DS battery has been made to be recharged around 500 times, after which the battery life will be 70% of its maximum charge. The length at which a rechargeable battery will last depends on how frequently you charge it. For older devices, it is usually recommended to allow the battery to drain as much as possible before recharging.
a car battery last for about 3-5 years
I assume you're assking about a 4Ah(ampere-hour) battery.How long it'll last depends on the drain.If the drain is 1A it'll last 4 hours.0.5 A, 8 hours2A, 2 hoursetc, etc
As long as the battery is kept charged then it should last 3-5 years.
a panasonic triple a battery last about 4 hours nonstop.
Normally, it should last for many days. A Li-Ion battery last about 2-3 months, but it depends on the design of the power bank and how much drain is on the battery from the internal circuitry. They should certainly last long enough for anyone to use them for charging their phone for a week or two or more.
No, the charger pulls so very little power as to not be an issue unless the car was not run for a long period of time. It would take a very long time for the charger to drain the battery.
This is an unanswerable question as neither the size of the battery nor the amount of electricity drain is given. a 3000 milliamphour battery will last 10 hours if drained at 300 mA, but a hundred hours at 30 mA.