# Perfect low cost lithium ion commercial battery for efoil or foil drive assist : LIDL Parkside X20V 8AH
**URL:** https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378
**Category:** Build, Repair & Mod
**Tags:** lto-batteries
**Created:** [October 16, 2023, 5:57pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378 "2023-10-16T17:57:33Z")
**Posts on this page:** 20
**Page:** 2
### Author:  [@nicolasLGM](https://foil.zone/u/nicolasLGM)
#### Post date: [January 19, 2024, 1:51pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/21 "2024-01-19T13:51:11Z")
in absolute terms, you’re right, but for those who want to make their own kit quickly without investing in a spot welder and all that’s needed to make a lithium ion battery (with the risks that this represents), + buying and plugging in a BMS, it’s still not so bad.
In terms of quality, there are not so cheap and support easily 60A battery current, 4200mah capacity per cell doesn’t seem overrated (manage to efoil 15-20 minutes) really enough for a faux drive assist.
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [January 21, 2024, 9:40pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/22 "2024-01-21T21:40:33Z")
> [@Toto44](#):
>
> Well there are for sure some chinese cells inside
@nicolasLGM, would you open one of these 8Ah batteries and tell us which 21700 cell reference you find inside and confirm the Serial / Parallel structure as well ?
It is interesting to compare the battery + charger combo price in € accross Europe:
| Lidl site | 8Ah Battery price | 1x12A BT Charger price | Total |
| --- | --- | --- | --- |
| .fr | 42 | 55 | 97 |
| .de | 50 | 40 | 90 |
| .be | 50 | 35 | 85 |
| .nl | 70 | 45 | 115 |
Battery from France + charger from Belgium is the best option (75€)
The old battery charger 2x4.5A is another cheap possibily
| Lidl site | 2x4,5A Charger price |
| --- | --- |
| .fr | 12,5 |
| .de | 38 |
| .be | 20 |
| .nl | 30 |
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### Author:  [@nicolasLGM](https://foil.zone/u/nicolasLGM)
#### Post date: [January 23, 2024, 7:01pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/23 "2024-01-23T19:01:21Z")
I had a small leak in my box , it damaged one cell , I opened the battery to check, and remove the damaged cell. Can I replace this damaged cell by a 21700 Samsung 40t 4000mah ( very close from the lidl cell) ?
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [January 23, 2024, 7:22pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/24 "2024-01-23T19:22:12Z")
So we have a genuine 5S2P setup confirmed by
[ ](https://www.youtube.com/watch?v=04ajFS-pWa4)
You have to find a cell with identical or higher Max. Continuous Discharge Current.
The Molicel P42A 4000mA with 45A MCDC might be too good for the job 😉
Not sure what happens if their power discharge capacity doesn’t match that of the group cells they are inserted in.
> **[Parkside 21700 orange cells ?](https://secondlifestorage.com/index.php?threads%2Fparkside-21700-orange-cells.12098%2F)**
>
> Anyone know what brand/rebrand are the orange 21700 cells from the parkside batteries ?
>
>
> View: https://www.youtube.com/watch?v=04ajFS-pWa4
A huge and heavy home-made 16Ah Parkside battery (April 2023):
[ ](https://www.youtube.com/watch?v=06jWB_av3OM)
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### Author:  [@Dany](https://foil.zone/u/Dany)
#### Post date: [February 28, 2024, 2:26am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/25 "2024-02-28T02:26:53Z")
Hello guys, could you detail what you use to have optimum electrical contact between the battery and your cables in the “Parkside x20 adapter”?
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### Author:  [@nicolasLGM](https://foil.zone/u/nicolasLGM)
#### Post date: [February 28, 2024, 11:47am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/26 "2024-02-28T11:47:47Z")
I use this product on 10awg cable :
[https://fr.aliexpress.com/item/1005005759515360.html?spm=a2g0o.order\_list.order\_list\_main.659.54145e5bqoignZ&gatewayAdapt=glo2fra](https://fr.aliexpress.com/item/1005005759515360.html?spm=a2g0o.order_list.order_list_main.659.54145e5bqoignZ&gatewayAdapt=glo2fra)
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### Author:  [@Dany](https://foil.zone/u/Dany)
#### Post date: [March 11, 2024, 1:13pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/27 "2024-03-11T13:13:15Z")
Hi Gents,
The smart charger is quite expensive in particular if you already have chargers at home.
I have seen people charging their battery with their own charger but none using the other connectors.
- Do you think it’s safe ?
- Do you think the internal BMS is good enough to balance the batteries ?
- If yes, why are they selling a “smart” charger ?
- If no, how could we replicate this “smart” feature ?
[Parkside (car) Battery Charger / Mount X 20 Team by MYLE - Thingiverse](https://www.thingiverse.com/thing:3110733)
Cheers
Dany
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [March 11, 2024, 9:10pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/28 "2024-03-11T21:10:00Z")
> [@Dany](#):
>
> why are they selling a “smart” charger ?
It’s refered to as “smart” because you have different feature the 28€ 2x4.5A double slot battery charger doesn’t offer:
- smartphone app over BT
- 60% charge hold feature
- 2 - 3 - 4 - 8A charge curent
- …
Con: one slot only wrt 2 slots with legacy charger
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### Author:  [@Dany](https://foil.zone/u/Dany)
#### Post date: [April 30, 2024, 2:16pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/29 "2024-04-30T14:16:54Z")
Hi Nicolas,
I see that the bluetooth feature allow to setup maximum amps and voltage.
Could you share the settings you are using ?
Cheers
Dany
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### Author:  [@nicolasLGM](https://foil.zone/u/nicolasLGM)
#### Post date: [April 30, 2024, 2:22pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/30 "2024-04-30T14:22:09Z")
Hi Dany
ECO mode, it s indicated max 60A, and 3V low tension
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### Author:  [@Joeanthonyadams](https://foil.zone/u/Joeanthonyadams)
#### Post date: [May 4, 2024, 5:11pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/31 "2024-05-04T17:11:52Z")
Hello! Very interested in this approach to get started. I am in the US and can’t find the parkside ones.
Could I use these ones?
https://www.ebay.com/itm/176317284971?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=s14\_fwcpqag&sssrc=4429486&ssuid=4VPYGAkOTv-&var=475811317291&widget\_ver=artemis&media=COPY
Also, what adapter will i need to connect 2 of these? Thanks
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### Author:  [@S\_Roger](https://foil.zone/u/S_Roger)
#### Post date: [May 4, 2024, 6:22pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/32 "2024-05-04T18:22:24Z")
Packs like that might work, but I think it’s risky because they are off brand knockoffs and you have no idea what cells are in there and what those cells are actually capable of. There are some tool packs out there that do have good quality cells if you research the topic. Some YouTube channels do pack tear down videos. I know harbor freight had nice Samsung cells in some of their tool packs a while ago but they may have switched. Good quality cells just cost more, building your own pack usually ends up costing less
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### Author:  [@Joeanthonyadams](https://foil.zone/u/Joeanthonyadams)
#### Post date: [May 4, 2024, 7:01pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/34 "2024-05-04T19:01:01Z")
Found one pack at $60 each with 21700 cells, 20v 9ah. No mention of brand
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### Author:  [@Joeanthonyadams](https://foil.zone/u/Joeanthonyadams)
#### Post date: [May 6, 2024, 1:10am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/35 "2024-05-06T01:10:40Z")
How do you charge these batteries? With their regular charger?
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [September 19, 2024, 7:04pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/36 "2024-09-19T19:04:35Z")
> [@nicolasLGM](#):
>
> I had a small leak in my box
Do you still ride your Parkside setup ? Have you changed your box after the leak ? What is its reference ?
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### Author:  [@Cid156](https://foil.zone/u/Cid156)
#### Post date: [September 20, 2024, 6:43am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/37 "2024-09-20T06:43:09Z")
Probably not as cheaper as the lidl battery.
Only 4ah but with 8 packs instead of 4 we can pull more Amps while using the bms
[https://www.galaxus.ch/fr/s4/product/einhell-2x18v-40ah-pxc-twinpack-cb-a1-18-v-batterie-outillage-chargeur-13968517?supplier=406802](https://www.galaxus.ch/fr/s4/product/einhell-2x18v-40ah-pxc-twinpack-cb-a1-18-v-batterie-outillage-chargeur-13968517?supplier=406802)
If I’m not mistaken, einhell is a good brand. They probably have good cells inside.
If the built is like the picture below, it will be easy to built a compact pack
Winter is coming… I will wait until march
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### Author:  [@nicolasLGM](https://foil.zone/u/nicolasLGM)
#### Post date: [September 20, 2024, 7:06am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/38 "2024-09-20T07:06:33Z")
> [@Joeanthonyadams](#):
>
> s14\_fwcpqag
everything working fine after a lot of sessions, the cells are really like samsung T40
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### Author:  [@Kingsurfboards](https://foil.zone/u/Kingsurfboards)
#### Post date: [August 17, 2025, 5:24am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/39 "2025-08-17T05:24:22Z")
Hello Nicolas, here in Italy this week we have the 20v on sale. Do you think is enough 2x4ah to build a foil drive slim system? I want only to catch more waves and help to go out from the beach. Now i have a flipsky 6374 motor. Thanks
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### Author:  [@Brando](https://foil.zone/u/Brando)
#### Post date: [November 4, 2025, 5:11am UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/40 "2025-11-04T05:11:50Z")
Hi !! I am going in circles reading forum responses and I am excited and lost at the same time. I have a foil drive gen 1 and looking to either make one or buy a battery replacement for a fraction of the cost of a new one from the manufacturer. Do you have a few links to batteries ready to go or a step by step outline on how to make one??? thank you very much for your help ! Branden
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### Author:  [@SoEFoil](https://foil.zone/u/SoEFoil)
#### Post date: [November 4, 2025, 8:19pm UTC](https://foil.zone/t/perfect-low-cost-lithium-ion-commercial-battery-for-efoil-or-foil-drive-assist-lidl-parkside-x20v-8ah/19378/41 "2025-11-04T20:19:20Z")
(Among) The best documented battery construction guides [@ludwig_bre + @Vincentbraillard] :
> [@eFoil Battery Build: Video Tutorial](https://foil.zone/t/efoil-battery-build-video-tutorial/18891):
>
> Hi everybody, As I am currently building a 2nd battery for one of my eFoils, I thought I might share my way of designing and building such a battery pack. Hoping this may help some of the beginners to get into that (sometimes a bit frightening) topic. First part: Feel free to share your thoughts and what you would do differently slight_smile[[#008-2: Building Battery Packs for eFoil [Pt.1: Design]] ](https://www.youtube.com/watch?v=sgQdSsx1Pwk)
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