8
ACTIVATION OF A DRY BATTERY (LEAD ACID)
Special order batteries can be shipped dry (acid shipped separately). To activate these
batteries, start by removing the vent caps. Using approved battery grade electrolyte
(1.265), fill each cell halfway between the plates and the bottom of the vent well tube.
(See Figure 4 on page 11.) It is important not to over fill the cells as the acid will expand
upon charging. If the cells are too full, the acid will spill out of the top of the cells.
Allow electrolyte to saturate into the plates and separators for at least 90 minutes. The
temperature of the electrolyte will rise and the specific gravity will drop. Once this is
complete, place the batteries on charge at the finishing rate (5% of the 8 or 20 hour
rate). The rate may be increased if the battery does not begin to gas. Do not let the
cell temperature exceed 115° F (46° C). If the temperature becomes excessive or the
cells begin to gas vigorously, reduce the rate of charge. Continue charging until the cell
(or cells) reaches within .005 points of the specific gravity of the filling electrolyte
corrected for 77° F (25° C). We recommend to continue charging for an additional 60
minutes to insure no further rise in specific gravity.
Top up or remove electrolyte as necessary for proper level. Never add electrolyte
(only approved water) after activation. Replace vent caps and remove any
spillage of electrolyte. If necessary, clean with bicarbonate of baking soda and
water (100 grams of soda to one litre of water). Rinse with water and wipe dry.
Ensure that the soda solution does not get into cells.
*Do not place on charge until electrolyte temperature is below 35°C.
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