AA & AAA pre charged NiMH
I bought some rechargeable batteries from Lidl once and from what I remember they worked once and then never held a charge. Utterly useless. I don't remember if they were this brand though.
Pentax hybrid user - Digital K3 & K200D, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X digital
Fan of DA limited and old manual lenses
I've been using these for over a year in LED torches, house phones etc. and of course flashguns. So far they have been fine.
Best regards

Gareth
Welsh Photographer
My outfit: K1 gripped - K3ii - two Z-1P - Pentax D FA 24-70mm - Sigma 70-200mm OS HSM - Pentax modified DA* 60-250mm f4 - Irix 15mm Firefly - Pentax FA 35mm - FA 50mm - Sigma EX 20mm - FA 28-70mm f4 - Tamron SP 90mm macro - Pentax AF 540 FGZ II
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They had both AAs and AAAs in stock, so it may still be worth checking your local branch if you need rechargeables.
K10D
Member
https://www.lidl.co.uk/en/p/diy/tronic-rechargeable-batteries/p38742
I use them and they are fine.
Not breaking the bank either.