Charging Intructions - Heartway Medical Products S19V Manual

CHARGING INTRUCTIONS

BATTERY CHARGER
The battery charger takes the standard wall outlet voltage (alternating current) and converts it into DC voltage
(direct current).The batteries use direct current to run your power scooter. When the batteries are fully
charged, the amperage from the charger is almost at zero. This is how the charger maintains a charge but does
not overcharge the battery.
Note 1: The batteries cannot be charged if they were discharged to nearly zero voltage.
Note 2: The power scooter meet the requirement of ISO 7176-14:2008 and ISO 7176-21:2003.
Note 3: Only use the battery charger type which was provided by the supplier. The use of any different type of
charger can be hazardous and need the approval of the manufacturer.
Description
NL07-25HT is a smart charger specially designed for Li-ion battery pack composed 7cells in series.
Electrical Specifications:
1. Input : 100~240VAC, 50/60 Hz Output: 29.4V± 0.2V 2.5Adc ± 10%
2. Charger output：The charger is preset by factory for charging 7 cells Li-ion battery pack.
Charging mode:
(1) Constant current (CC) mode: at beginning of charging, an 2.5Adc±10% (I(ave) ) constant charging current
to charge the pack until the pack voltage reaches to 29.4V± 0.2V.
(2) Constant Voltage (CV) mode: the output will keep 29.4V±0.2V constant through the end of charging.
(3) Pre-charge state: When battery voltage is lower than 21V±1V, will start the pre-charge first. The charge
current is 20% of CC charge current: 0.5Adc ± 10%.
(4) Re-charge state: When fully-charged battery voltage drops lower than 28.3V± 0.5V,the charger will start a
new charge cycle.
Note: Only use the battery charger which was provided by the power scooter supplier. The use of any different
type of charger can be hazardous and need the approval of the manufacturer.
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