Mr Not H.
Appalling: avoid at all costs
Bought a 5.0Ah unit for Ryobi. Dead on arrival, would not charge, error message. Also it was oversized and difficult to fit in and out of charger Vendor did not want unit back but procesed refund. Took unit apart and found terrible soldering on battery control board. Of the ten 18650 cells two were wholly dead. Remaining eight cells seemed OK in terms of voltage so put them into a 4 cell charger/power bank unit to test. After a few cycles, 4x of these fully charged 18650 cells could charge a Samsung mobile phone twice before cutting out. I have a two cell power bank (with genuine Samsung 18650 cells) that can charge the same phone three times! Utter dross containing poor quality, low capacity cells. unfit for purpose



