Charging instructions

Charging instructions

Charging based on an EPS 4 / 8 / 14 amp 2 Stage Charger

If green light is on 14.6-14.8 it is in boost until approx 95% of its full charge, it will then switch from boost then to float mode of 13.6-13.8 volts. The charger and battery can remain in this state indefinitely. Approx 1 hour later turn off the charger wait 6 hours before you check the voltage to get a true voltage reading. If necessary charge further to reach an optimum 12.8 volts. Anything over 12.64 volts is acceptable.

Matching battery’s with chargers. Use the 4 amp for the PC545 and PC535 an 8amp on PC625 & PC680 and below. And Odysseys’ 14 amp charger on PC925 and above.

No Boost Charge

When the battery is very low voltage and it won’t except a charge

If the battery is below 6 volts, jump the battery by doing a + on +, - on – using jumper cables then with the jump cables still in place charge the batteries to get a charge into the flat one.
Note Check both batteries for heat regularly.

Sulphur

If the battery voltage is between 8-10 volts, charge it for 10-15min then measure voltage with charger turned on. If the voltage isn’t between 14.6 volts & 14.8 volts there is sulphur present (or a state of sulphation).

If within 1-2 hours the battery is hot to touch, switch the charger off and measure the voltage again. Repeat as necessary to charge the battery.

Battery Sulphation - how it occurs

If lead acid batteries are left uncharged for lenghty periods, they deteriorate. This is because the sulphuric acid electrolyte attacks the electrode plates and forms the compound lead sulphate as the battery self-discharges. This is unfortunate for two reasons: firstly lead sulphate is an insulator and thus prevents current flowing between the plates, and second, the acid becomes weaker and is thus prone to freezing in cold conditions.
In a 'young' battery, the (soft) lead sulphate is forced back into lead and sulphuric acid by the charging process. If the lead sulphate is allowed to harden over a long period of time (typical neglect) it will not dissolve easily and normally, such a battery is rendered useless and void of warranty.