Duracell Supreme rechargeable battery (AA, HR6, 1.2 volts, 2.400mAH) 4 piece (Personal Care)
Had four of those things in a camping lamp, eventually was then 'out' - so far, so clear. Ans charger (Technoline a 700BC) then approximately 1 week later - over! Battery fully discharged, 'zero', broken. Use otherwise Sanyo Eneloops when the 'end ar