LIDL transmitter batteries (almost)

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Phil_G
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Joined: 15 Feb 2018, 23:32
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LIDL transmitter batteries (almost)

Post by Phil_G »

I've always wondered about the safety aspect of plastic-cased transmitters living indoors with their internal LiPo batteries. I'm a huge fan of the much-safer metal-cased, cylindrical 18650 size cells, and LIDL have a "Parkside" 2Ah, 21v Li-ion drill battery on offer for £12 at the moment. Its a 5S pack of good quality cells, ideal for making 2S tranny power packs. Its not difficult to dismantle the pack, harvest the cells then reassemble them into a couple of 2S batteries - and a spare :D
They're 4.2v charge so can be treated just like the usual 2S LiPo, and I've wired mine with a centre-tap, not to be truly authentic to the bad old days but to allow balance charging. You'll need a stardrive as apparently there are "no user serviceable parts inside". Wrong!

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Alternatively, Componentshop have ready-made 2S 18650 packs for £8.95:
https://www.componentshop.co.uk/7-4v-15 ... -pack.html
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Wayne_H
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Re: LIDL transmitter batteries (almost)

Post by Wayne_H »

Good one Phil 8-)

For the true(?) Yorkshire men who don't want to part with their hard earned reddies, I've "re-purposed" many 18650's from cordless vacuums & laptop batteries that have suddenly failed, normally due to one dud cell. I always cycle every cell (after dis-assembly) at about 1A which gives plenty of margin over our uses in a Tx.

I then routinely monitor their capacity, as I do with all my packs (LiPo & Nimh). Doing this, I've not (yet) had a failure in service!
Cheers,

Wayne
Once a Retrobate, always a Retrobate............ ;)
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Shaun
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Joined: 15 Feb 2018, 21:49
Location: West Yorkshire

Re: LIDL transmitter batteries (almost)

Post by Shaun »

This is what happens when you can't be bothered looking for stuff you think you may have. I needed some 18650 cells for my new NRF tx.. Couldn't remember if I had any left so went to Lidl and bought the drill pack Phil recommended. Stripped them down then went looking for some heat shrink and guess what I found... Some 18650's I bought at the start of lockdown... Still at least I still have some spares in stock..

Shaun.
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