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Old 09-17-15, 04:20 AM   #1
safren
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2A charger to replace 1.8A charger

Original battery charger output was 29.4V, 1.8A. I have a new charger with output of 29.4V, 2A. Will this shorten the life of the battery?
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Old 09-17-15, 09:25 AM   #2
350htrr
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Probably not...
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Old 09-17-15, 12:30 PM   #3
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Originally Posted by safren View Post
Original battery charger output was 29.4V, 1.8A. I have a new charger with output of 29.4V, 2A. Will this shorten the life of the battery?
You would have to know the specific battery and specs used in your build, but 2A is a standard lithium charge rate, off hand I can't see how it would be a problem. 5a would be a problem, 2A, pretty unlikely.
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Old 09-20-15, 09:31 AM   #4
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Originally Posted by safren View Post
Original battery charger output was 29.4V, 1.8A. I have a new charger with output of 29.4V, 2A. Will this shorten the life of the battery?
With Lithium batteries ...
Maximum charge rate is typically listed at .5C.
So, as long as your battery pack is greater than 4Ah, 2.0Ah should be acceptable.

E.G. A 10Ah battery should be charged with a ≤5A charger.
Charging at notably less than 5A should increase battery lifespan only slightly.

Note: When calculating maximum charge rate (AND DISCHARGE RATE) use actual capacity rather than original!

Last edited by DrkAngel; 09-20-15 at 09:54 AM.
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Old 09-21-15, 06:56 AM   #5
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Lightbulb

Quote:
Originally Posted by DrkAngel View Post
With Lithium batteries ...
Maximum charge rate is typically listed at .5C.
So, as long as your battery pack is greater than 4Ah, 2.0Ah should be acceptable.

E.G. A 10Ah battery should be charged with a ≤5A charger.
Charging at notably less than 5A should increase battery lifespan only slightly.

Note: When calculating maximum charge rate (AND DISCHARGE RATE) use actual capacity rather than original!
Important! Confirm that you are using a Li-ion charger on a Li-ion battery.
Mixing types can be very damaging or dangerous!
Do not use SLA charger on Li-ion or vice versa.
29.4V is the normal charge voltage for 7s Li-ion + Lipo batteries ...
But might also be the initial charge voltage for 24V Flooded Lead Acid (FLA) batteries. Sealed Lead Acid (SLA) batteries must be charged at a lower voltage (≤ 27.6V)

≤ 5A Li-ion charger for 10Ah Li-ion battery.
≤ 1.8A SLA charger for 10Ah SLA battery.
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