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Doss DPS300 User Manual page 2

300 amp battery jumper with 260psi air compressor

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the accessory to be used.
Do not place anything into AC charging input socket except the provided plug from charger unit.
Remove metal personal jewelry, such as rings, bracelets, necklaces and watches while working with a lead-acid battery.
It can produce a short-circuit that may cause severe burns.
Never charge or jump-start a frozen battery.
Never allow clamps (positive & negative terminals) to touch together or to connect the same piece of metal to prevent
short-circuits and arcing.
Do not operate this device while wearing vinyl clothing. Static electricity may be generated when vinyl clothing is rubbed.
This product is not intended for use in the rain or temperatures above 130°f
Use only the provided chargers, cables and clamps. Unauthorized parts may damage the unit.
This product has no consumer serviceable parts.
This product is not a toy. Keep out of the reach of children.
Keep battery terminals clean. Be careful to keep corrosion from coming in contact with eyes.
Do not let the cords of the jump-starter or attached appliances get wet.
Do not operate this unit in or around water. Water can damage the unit.
CHARGING AND RECHARGING
WARNING:
Do not overcharge this unit. Prior to charging unit, read and understand all instructions for this
unit. Overcharging may result in damage to the unit.
All rechargeable batteries gradually discharge when left idle, and you need to recharge them periodically to maintain
maximum battery capacity. The AC charger supplied with the Power Station is designed to charge using a 230/240-volt
outlet. Using the DC charging cable, the Power Station can be recharged while you drive your vehicle.
To ensure safe recharging and maximum battery life, recharge the Power Station only with the supplied charger or
charging cable, or equivalent.
Fully charge unit with the supplied 230/240-volt AC charger to the recommended maximum and initial charge time of
28 hours. Thereafter, an AC typical charge time is 20 to 24 hours when using the AC charger.
Recharge the unit fully after each use. This will prolong the life of the battery because frequent discharges between
recharges will reduce battery life.
Make sure all functions of the Power Station are turned off during recharging. Due to inherent self-discharge, lead-acid
batteries should be charged at least every 3 months, especially in a warm environment. Leaving a battery in a discharged
state, or if not recharged every 3 months, may result in permanent battery damage and poor jump-starting performance.
Do not attempt to recharge the Power Station battery if it is frozen. Gradually warm the frozen battery to 0°C (32°F)
before recharging.
Do not operate DC appliances with the Power Station while the unit is being recharged with the AC charger. The AC
charger may be permanently damaged if 12-volt DC appliances are operated while the AC charger is connected.
NOTE: Make sure both cable clamps (positive and negative) are placed in their storage holsters when not in use.
CHARGING WITH AC CHARGER:
DO NOT EXCEED MAXIMUM RECOMMENDED AC CHARGE OF 36 HOURS.
1. Disconnect any DC appliance from the 12-volt DC power socket.
2. Turn the jump-starter ON/OFF switch to the OFF position.
3. Remove the charging jack cover and insert the AC charger cable into the charging jack located on the front panel.
4. Plug the AC charger into a standard AC wall outlet.
5. While the Power Station is recharging, the red LED charging indicator will be lit. A typical recharge time is 20 to 24 hours.
6. During the charging period, you can press and hold the battery status button to check the Power Station battery charge
level. The red LED, then the yellow LED and finally the two green LEDs will illuminate sequentially during the charging
process. Continue charging until the two green LEDs remain lit constantly. Disconnect the AC charger after the Power
Station is fully charged.
CHARGING WITH 12-VOLT CHARGER:
DO NOT EXCEED MAXIMUM RECOMMENDED AC CHARGE OF 18 HOURS.
1. Disconnect any DC appliance from the 12-volt DC power socket.
2. Turn the jump-starter ON/OFF switch to the OFF position.
3. Plug the DC charger cable into any standard 12-volt cigarette lighter/accessory socket.
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