Today I was testing some cheap rechargeable 18650 3.7V Li-Ion batteries from Ebay. They are sold in pairs and branded as "Double Pow" or "DoublePow". The measured capacity seems very close to the nominal one. They are marked ICR18650, they have a flat top and they are unprotected. They come in 2000mAh and 1200mAh versions.
You can support me on Patreon:
[ Ссылка ]
