1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 206Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 206

STORAGE BATTERY MAINTENA NC tron ba lte ry mu be maintain dIf battery sh ows less th 9h vo lt wh und er startio loadit sh
and vo lta ge capa t}' to sta rtin (c rankinmotor nd res Its in few engine ta rts before ba tter no 10nO'er tum ta rter motor
fa nou gh to tart ngi ne 2A dry-c ha rge batte ry should not be filled with elec trol yte until so ldAfter ba tte ry has
been filledwai t 15 minutes nd check pec if ic gravity of eac ce ll with hydrometerIf specific gravity rops below 1.230 in
an ce llbrin ba tte ry up to full charge be fore placin in rviceBrinbalte l")' to fu ll char ge with ' ha rge for 2-to-3
hn urs at ampere rate TAB LE of GRA VI READINGS F igure 1Tes ing with Hydrom te r 2A 12-v ltfuJI marine-type Qui cksil ve
battery minimum 70 -amp re-hour ca pa ity is recommended for ll 'le rCrui er en gine 'VO E: Ch eck aLso an be made wit hydrometer(Fig
lJ.re J) l( reading is be lo l('.230 ra vity), rec ha rge or re place present batt ryBattery and battery re adin in thi manual