Can long-term trickle charging NiMH Batteries damage them
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Can long-term trickle charging NiMH Batteries damage them

[From: ] [author: ] [Date: 12-02-17] [Hit: ]
which is extremely rare, happens maybe like once every 3 months.Will the batteries get damaged over time from this? If so, how long do u think they will last before they have to be replaced?-Yes.......
I am making a Battery Backup system for a project I'm working on, and the batteries will be trickle charged using 1/40th the current. They will be connected to the trickle charger permanently unless power goes out, which is extremely rare, happens maybe like once every 3 months.

Will the batteries get damaged over time from this? If so, how long do u think they will last before they have to be replaced?

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Yes. NiMH cells are not tolerant of trickle charging. I couldn't predict cell life, but you'd be better off using lead acid. Nothing you use as a battery in a UPS should be trickle charged. Batts should be charged according to a profile and then floated. Float is a constant voltage "charge" that delivers way less than 1/40 C current.

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One good place to look up the characteristics of various battery technologies is, amazingly enough, wikipedia.

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This site says you should not apply a continuous charge, even if it is small. http://batteryuniversity.com/learn/artic…

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if you overcharge it will kill the battery
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