HQRP Ultra High Capacity Ni-Mh 1/2D 6V 3500mAh Rechargeable Battery for Moltech Power Systems N38AF001A / Intec IMT-3500D / ESR8EE5920 RL1019 RL2019 Battery Replacement plus HQRP Coaster HQRP&reg; Ni-Mh 1/2D 6V 3500mah Battery Pack plus HQRP&reg; Coaster; Battery Type: Nickelmetal Hydride, 5 Cell 1/2D; Capasity: 3.5Ah; Voltage: 6V; Dimension: 1.3" (33mm) x 7.2" (184mm); Extra High Capacit and Long life cycle, can be recharged over 500 times! 200 Days Warranty!