The Graupner 4N-250 AA NiMH battery is made from 4 cells 1/3 AA. Due to its compact dimensions, this battery is particularly suitable for very small models.
Like all Graupner batteries the 4N-250 AA is very durable and well manufactured. The battery can be charged quickly (maximum charging current 0.1 A) and is equipped with a JR plug.
Used this battery to replace inoperative battery in a 2012 Volvo C70 alarm siren. Fit, plugged in and worked perfectly.
Reviewed by: Greg Linenfelser from Virginia on 8/17/2018