Charging The Battery Pack - EarthWise SN74016 Operator's Manual

The 40 volt battery supplied is sealed, maintenance free
and spill free.
Charge the battery pack only with the charger provided.
Allow at least 150 minutes of charge time before initial
use.
Make sure the power supply is normal household
voltage, 120volts, 60Hz, AC only.
The battery charger should be operated in temperatures
between 32 and 113 degrees F.
The battery should be charged in a cool, dry place.
2 to 3 initial charging/discharging cycles may be required
to achieve maximum run time/capacity.
Do not attempt to open the charger or the unit. There are
no customer serviceable parts inside. Call the customer
service help line at 1-800-313-5111 for assistance.
DO NOT incinerate battery packs even if they are
severely damaged or completely worn out. They can
explode in a fire causing injury.
Use the battery charger indoors only.
Disconnect charger from the power supply when not in
use to prevent damage to the charger during a power
surge.
When fully charged, the battery can be safety stored in
temperatures down to –68° degrees F for a period of up
to four weeks, before requiring charging. Fully charge
battery pack every 90 days.
If over a period of time the battery pack quickly runs
down after a full 150 minutes charging period, a
replacement battery pack is needed.
To prevent permanent damage to the battery, never
store in a discharged condition.
WINTER STORAGE—Fully recharge before storage and
then again every 90 days.
Since the battery will not develop a memory, it does not
have to be fully discharged before recharging.

CHARGING THE BATTERY PACK

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A small leakage of liquid from the battery cells may
occur under extreme usage, charging or temperature
conditions. This does not indicate a failure. However, if
the outer seal is broken and this leakage gets on your
skin:
a. Wash quickly with soap and water.
b. Neutralize with a mild acid such as lemon juice or
vinegar.
c. If the battery liquid gets in your eyes, flush them with
clean water for a minimum of 10 minutes and seek
immediate medical attention.
To charge the battery:
1) Plug in the charger. The red LED (B) will glow.
2) Place the battery pack in the charger. The battery
pack and charger have keyways so they will fit
together only one way.
3) When properly connected, the Green LED (C) will
flash. If the Red LED flashes, this indicates a
defective or wrong battery.
4) The charger indicator will flash Green continuously
while charging. When fully charged the LED will
remain Green.
5) Unplug the charger and remove the battery pack
from the charger.
A battery that is completely discharged requires 2.5
hours to fully charge. The charger will shut OFF
automatically if the battery is left on the charger for eight
(8) hours and the Red LED will flash.
A battery pack may last much longer if you charge it as
soon as one green light illuminates and you do not let it
completely discharge. The battery has four (4) LED
lights to indicate battery capacity. These lights will
illuminate when the light indicator button (A) is pushed.
Important! To keep the battery in good condition charge
the battery after each use. Never store the battery in a
low charge condition. If storing the battery for long
periods, charge the battery every 90 days.