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Re: Lidl Battery packs 20V?
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Andy Burns
Oct 2, 2021, 10:10:11 AM10/2/21
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Charlie+ wrote:
> The tool driver Li-ion 2Ah and 4Ah packs are in Lidl UK at the moment.
> Anyone happen to know how many cells (in series) these really are? They
> have quoted an ambiguous 20V voltage, could be either 5 or 6 series
> cells.. anyone know or can measure the charged volts - Thanks C+
20V is marketing speak for 18V, so multiples of 5 cells per pack
> The tool driver Li-ion 2Ah and 4Ah packs are in Lidl UK at the moment.
> Anyone happen to know how many cells (in series) these really are? They
> have quoted an ambiguous 20V voltage, could be either 5 or 6 series
> cells.. anyone know or can measure the charged volts - Thanks C+
20V is marketing speak for 18V, so multiples of 5 cells per pack
Jeff Liebermann
Oct 2, 2021, 12:11:35 PM10/2/21
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On Sat, 02 Oct 2021 11:32:08 +0100, Charlie+ <cha...@xxx.net> wrote:
>The tool driver Li-ion 2Ah and 4Ah packs are in Lidl UK at the moment.
>Anyone happen to know how many cells (in series) these really are? They
>have quoted an ambiguous 20V voltage, could be either 5 or 6 series
>cells.. anyone know or can measure the charged volts - Thanks C+
This tool perhaps?
>The tool driver Li-ion 2Ah and 4Ah packs are in Lidl UK at the moment.
>Anyone happen to know how many cells (in series) these really are? They
>have quoted an ambiguous 20V voltage, could be either 5 or 6 series
>cells.. anyone know or can measure the charged volts - Thanks C+
<https://www.lidl.co.uk/c/diy-projects/c2056/w1>
<https://www.lidl.co.uk/p/diy-projects/parkside-20v-2ah-battery/p45848>
In general you get better answers if provide specifics such as maker,
model, etc.
Here's a video of the battery pack teardown:
"Lidl Parkside X20V Team Battery - Strip Down & Analysis"
<https://www.youtube.com/watch?v=CN0q4wZBnBo>
I count five INR18650E cells:
<https://lygte-info.dk/review/batteries2012/Parkside%20INR18650E%202000mAh%20(Blue)%20UK.html>
Looks like a tolerable cell, but nothing spectacular. You might want
to measure the operating current of the tool while drilling to make
sure the current stays mostly under 20A maximum.
You can also just measure the voltage across the battery pack
terminal. LiIon is nominally 3.7v per cell. For 5 cells, you should
see 18.5 volts. If you just charged the battery to it maximum save
voltage of 4.1V, you'll see 20.5V. The "20V" rating is from
marketing, which believes that bigger numbers sell better but decimal
points create confusion.
--
Jeff Liebermann je...@cruzio.com
PO Box 272 http://www.LearnByDestroying.com
Ben Lomond CA 95005-0272
Skype: JeffLiebermann AE6KS 831-336-2558
Jeff Liebermann
Oct 2, 2021, 12:25:29 PM10/2/21
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On Sat, 02 Oct 2021 09:11:27 -0700, Jeff Liebermann <je...@cruzio.com>
wrote:
>You can also just measure the voltage across the battery pack
>terminal. LiIon is nominally 3.7v per cell. For 5 cells, you should
>see 18.5 volts. If you just charged the battery to it maximum save
>voltage of 4.1V, you'll see 20.5V. The "20V" rating is from
>marketing, which believes that bigger numbers sell better but decimal
>points create confusion.
Speaking of confusion, this might be of interest:
"Confusion with Nominal voltage especially in NMC cells: 3.6V or
3.7V?"
<https://www.linkedin.com/pulse/confusion-nominal-voltage-especially-nmc-cells-36v-37v-yadav/>
wrote:
>You can also just measure the voltage across the battery pack
>terminal. LiIon is nominally 3.7v per cell. For 5 cells, you should
>see 18.5 volts. If you just charged the battery to it maximum save
>voltage of 4.1V, you'll see 20.5V. The "20V" rating is from
>marketing, which believes that bigger numbers sell better but decimal
>points create confusion.
"Confusion with Nominal voltage especially in NMC cells: 3.6V or
3.7V?"
<https://www.linkedin.com/pulse/confusion-nominal-voltage-especially-nmc-cells-36v-37v-yadav/>
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