TM5-6130-301-13&P
marked as NOT being a common lead-acid battery. Prior to charging nickel-iron batteries, it is desirable to
determine their specific gravity. The Edison cell has a normal specific gravity ranging from 1.160 to 1.215. Any
value below 1.160 at 60 F means the electrolyte should be replaced with electrolyte (potassium hydroxide) of
the proper specific gravity. Once filled with new electrolyte, determine the actual voltage between Edison cell
terminals. Then choose a controlled station which can provide that voltage value PLUS at least 2.4 volts dc (3.6
volts dc max). Now, follow the instructions for charging batteries as given in paragraph 2-7 or 2-8.
circuit breaker associated with the station. To shut the entire unit down, turn off the main power switch (19,
Figure 2-1). As a final emergency shut-down procedure, turn off the power source for the Battery Charging
Distribution Panel.
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
accumulated on the panel or wiring.
Do not bend or king wiring as it becomes brittle with extreme cold.
2-14. OPERATION UNDER RAINY OR HUMID CONDITIONS. Humid conditions can cause corrosion and
deterioration of electrical components. Keep electrical components and wiring clean and dry.
2-15. OPERATION IN SALT WATER AREAS. Wipe the Battery Charger Distribution Panel with a clean
cloth dampened with clean, fresh water at frequent intervals. Use care not to damage the electrical system with
water.
