You can always charge a battery with less current. Heck you can even not charge it (no current). But if the battery wants to charge with more current than the adapter can handle, the adapter might overload. If it's a good adapter it will just switch off. If it's a crappy one it might catch fire. So your choice.
The charging current of the battery will decrease, and the battery charging current will decrease as it approaches full capacity until the battery is fully charged. Another is that there is no harm in charging a fully charged battery because the current will be very small.
Electrical Engineering Stack Exchange What if i charge a battery with low ampere.? Assuming we have a mobile-phone LiIon battery and a charger which is only able to supply less ampere than the original one, will it damage the battery if i charge with less ampere charger than the original one.
If the rating is too low for the equipment, it will attempt to draw more electricity from the supply than the supply can provide, and it will get hot and perhaps explode. When it comes to amperage when charging a battery the amount of amperage you are supplying does make a lot of difference and it surely does matter.
It is best to avoid a charger that is supplying too low amperage. If the rating is too low for the equipment, it will attempt to draw more electricity from the supply than the supply can provide, and it will get hot and perhaps explode.
The charging process reduces the current as the battery reaches its full capacity to prevent overcharging. For instance, a lithium-ion battery may charge at a constant current of 1C until it comes to around 70% capacity, after which the charger switches to a regular voltage mode, tapering the current down until the charge is complete.
Is a battery healthy if drops under 10 volts with load?
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batteries
If the battery is a Lithium Ion or Lithium Polymer battery, both of which are essentially the same electrically, then a charger of the correct voltage but lower rated current: Will take longer to charge. If the charger is capable of X% of the charge current of the original one then it will take approximately 100/X times longer.
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batteries
When the battery is connected and tries to draw more than the set current, the charger will drop its voltage to limit current. At the same time the battery voltage will rise due to the charging current. When battery voltage reaches 8.4V the charger will progressively lower the charging current to prevent the voltage from going higher than 8.4V.
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The battery is now in a state of charge of >80%. Constant current (CC) charging requires the initial charge current to be limited to a % of the battery''s capacity to avoid unnecessary gassing. NOTE: Manufacturers publish different current limits for the BULK charge phase of a CC charge curve: 13% of the C20 (15%C5) rating for flooded deep-cycle
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Is a battery healthy if drops under 10 volts with load?
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batteries
Will it damage the battery ? Answer: Yes you can but it is not the battery which is at danger. You can always charge a battery with less current. Heck you can even not charge it (no current). But if the battery wants to charge with more current than the adapter can handle, the adapter might overload. If it''s a good adapter it will just switch off.
Learn More
What Causes A Battery To Lose Cold Cranking Amps?
Cold Cranking Amps, or CCA, is a measurement of how much current, or amperes, your battery can deliver for thirty seconds when it is started at 0°F. Furthermore, the battery is not permitted to fall below a specified voltage threshold during this period of current delivery.
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Does amperage matter when charging a battery? (Solved).
What happens if the amperage is low. When it comes to current, you must make sure that the Amps rating is greater than the device requires since it will only consume as much power as is needed. It is best to avoid a charger that is supplying too low amperage.
Learn More
