E5470 Battery Replacement

Hi FFC999,

You can PM us the system service tag details for specific battery shipped with the system.

This model is shipped/tested with the following battery configuration.

Hi Parnoshree,

Thank you for the reply. I should be more specific about my question- Does the difference in voltage can potentially cause any problem? 

Welcome to the Dell Community  @FFC999 

The different voltages are normal and safe to use.

The bigger question is if that battery is the correct Wh for your laptop???

What CPU do you have installed???

Best regards,

U2

HI FFC999,

We dont recommend higher wattage battery to be used unless it is shipped with the system.

As higher wattage can cause hardware issues to other hardware components.

@Dell-Parnoshree C 

Do you recommend the correct battery be installed for the system requirements?????

Battery Feature Specification:

47 Whr (3–Cell) (dual core)

62 Whr (4–Cell) (quad core)

https://www.dell.com/support/manuals/us/en/04/latitude-e5470-laptop/latitudee5470_om/battery-specifications?guid=guid-699416ca-bd2b-42ec-952e-e914ece9e72c&lang=en-us

Best regards,

U2

Quote" The different voltages are normal and safe to use.

The bigger question is if that battery is the correct Wh for your laptop???"

This is a very dangerous statement and I would strongly suggest anyone taking that advice to safely ignore it.

Voltages are the most important thing to get right in any electronic circuit, having enough current is the next step.

Wh is a bad reference here because it does not explain the rest of the details used to get to that variable, such as what power is and why we have the term Wh.

Simple formula you can look up for instantaneous power for dc circuits, P = I x V. P is Power, I is Current and V is Volts. P is the power requirement for the circuit in Watts. 

Once you know what the power requirements are, then Wh is how long that circuit can run for given the characteristics of a battery. Such as for its nominal voltage and current draw at the output/s. A Wh for a battery is the maximum power delivery at the rated Voltage/Current draw for 1 hour before it goes flat.

With that said, with enough information of the circuit, tolerance errors calculated for in values are expressed in percentages and generally a rule I use is if the voltage is different by more than 5-10%, chuck that idea entirely.

Having enough current to supply the circuit would be the next step, as long as the current meets the MINIMUM requirement of the circuit then you're good to go. Less will cause circuits to misbehave, but generally not blow them out. Volts, however, will make things go bang if out by too much!

In summary, a circuit will tend to not draw more current than it needs under ideal circumstances. Too much voltage is like using a sledgehammer instead of a regular one, it will blow out circuits.

Welcome to the Dell Community @C_E 

W=VxA

Wow I learned that in Electronics Engineering 101 over 40 years ago.

And Computer Science 101 around 35 years ago.

When the occasion arises that there are multiple batteries for a specific laptop you can go to a higher wattage one with no problems.

It is going to a lower wattage that can cause problems. 

Same thing with a S.M.A.R.T.  AC adapter.

You can go higher than the laptops requirement but not lower.

You can usually find the laptops power requirement on the base cover and the wattage of the AC adapter on the label.

Best regards,

U2

Hi my laptop 

can please suggest me the exact battery that is shipped with the same.

Thanks & Regards

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