The E7470 is around 5-6 years old and if that battery is the original then it could very well need replacing. Losing charged capacity like you have stated can be a symptom of a battery showing it's age. And if it is not an original Dell battery that could account for problems as well. Battery life in a Dell laptop is usually 1 1/2 -2 years depending on usage and how many charge cycles the battery has been through. If you decide to replace, genuine Dell OEM batteries can be found at Parts-People web site here.
No one can ensure that the issue won't occur with a new battery, but given that the battery is clearly at the end of its lifespan, you won't know until you replace the battery.
It's highly likely a new OEM battery will solve the problem. If you decide to try a third party battery instead for cost reasons, look for a reliable seller that is willing to stand behind the product. Non-OEM batteries can be very good, viable units -- or they can be under-engineered junk.
JOcean
9 Legend
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12.6K Posts
0
February 11th, 2023 05:00
The E7470 is around 5-6 years old and if that battery is the original then it could very well need replacing. Losing charged capacity like you have stated can be a symptom of a battery showing it's age. And if it is not an original Dell battery that could account for problems as well. Battery life in a Dell laptop is usually 1 1/2 -2 years depending on usage and how many charge cycles the battery has been through. If you decide to replace, genuine Dell OEM batteries can be found at Parts-People web site here.
MM6789
3 Posts
0
February 11th, 2023 05:00
Yes, but do u see that normal? 2000mWh dropping each charging cycle. Do u think this can happen with a new battery? or 100% its gonna be fixed.
Thanks!
ejn63
10 Elder
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30.7K Posts
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February 11th, 2023 07:00
The battery has less than half its design capacity left. It does need to be replaced.
If the system has a warranty, ask the seller for a replacement battery (assuming it's covered).
If not, you need to purchase a new battery, preferably OEM.
MM6789
3 Posts
0
February 11th, 2023 07:00
But do u think this massive drop of mWh its not gonna happen with a new one? do u think it could be a problem with the laptop itself?
ejn63
10 Elder
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30.7K Posts
0
February 11th, 2023 08:00
No one can ensure that the issue won't occur with a new battery, but given that the battery is clearly at the end of its lifespan, you won't know until you replace the battery.
It's highly likely a new OEM battery will solve the problem. If you decide to try a third party battery instead for cost reasons, look for a reliable seller that is willing to stand behind the product. Non-OEM batteries can be very good, viable units -- or they can be under-engineered junk.