Sencore VP300 - Manual (Page 4)

Page 3
Preparation for first time use
Battery Types Used
The Model VP300 generator is supplied with four (4) internal size AA rechargeable Nickel
Metal Hydride (NiMH) cells. These 1500 mA/H rated cells will operate the generator for about 8
hours on a full charge. They can normally be recharged about 1000 times before needing
replacement. No other type of rechargeable battery can be used in the generator!
You can use non-rechargeable alkaline AA cells with the generator, provided that you never use
the external power supply with the generator while the alkaline cells are in the unit. Attempting
to operate the generator or recharge the alkaline cells with the external power supply may cause
operator injury and/or damage to the generator! Never mix battery types in the generator.
AC Power Supply
The AC power supply that comes with the generator has an input voltage range of 100-240 VAC
from 47 to 63 Hz. The output is rated at 9.0 VDC @ 1.67 Amp. This is sufficient to operate the
generator and recharge the batteries at the same time. Attempting to operate the generator or
recharge the batteries with any other type of external power supply may cause operator injury
and/or damage to the generator!
Battery Installation
1) Place the generator face down on a suitable padded surface.
2) Remove the two back cover screws shown in the top figure.
3) Lift the back cover off the generator and locate the four
battery holders, as shown in the middle figure.
4) Install the batteries, making sure to match up their polarities
for each battery holder. The supplied batteries may not have
any printed polarity indication. The outer metal can is the
negative terminal. The insulated metal button, as shown in the
end view in the lower figure, is the positive terminal.
5) Replace the back cover and retaining screws.
6) When the generator is shipped from the factory, the supplied
batteries may not be fully charged. Connect the supplied AC
power supply and charge the batteries for at least 8 hours.
Low Battery Indication
A "BATTERY LOW" message blinks on the LCD when the NiMH
batteries need recharging or alkaline cells need replacement.