RM640 Alkaline Battery

  • The LR52 / A640 is a mercury-free replacement for the RM640 / MR9 cell that was commonly used in cameras and carriage clocks. Mercury cells are now banned because of toxicity and environmental fears.
  • The LR52 / A640 cells produce 1.5 Volts, which is higher than the 1.35V produced by the original mercury cell. Most devices accommodate the small increase in voltage and function properly.
  • Replacement For the following: PX640A, A640PX, RM640, MR9, EN640A, EPX640A, PC640A, LR52, 1126A, PX640, EPX640, V640PX, H-N, E640N, MR52, NR52, 1126MP

RM640 Battery is compatible with the following models:
RM640, MR52, PX640A, 1126MP, EN640A, V640PX, 960-0374, PX640AB, RM640R, PC640A, A640PX, 1105M, RPX640, E640N, PX640, EPX640, KX640, EPX640A, E140, V640,

This battery is used in the following devices:
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