4
Safety instructions
• Please read and understand the whole user manual before installation and usage of
the LE300 Lithium Extension Battery.
• Only connect to 12 VDC batteries of the following types:
– Lead storage batteries with liquid electrolytes
– Sealed lead acid batteries – GEL or AGM
• Use the device only in combination with a lead acid battery and a lead acid charge
controller, do NOT connect loads or power sources directly to the lead acid battery nor to the
LE300 device.
• Lead acid batteries can generate explosive gases during operation. Never smoke, allow
flames or sparks near the battery. Make sure to keep sufficient ventilation around the
battery and read the lead acid battery user manual.
• Do NOT use with nickel cadmium batteries, nickel metal hydride batteries or other
battery types.
• Do NOT mix up the + (plus) and - (minus) poles of the battery.
• Do NOT connect anything to a damaged battery. It could heat up, catch fire or explode.
• Do NOT open the battery pack. Danger of short-circuiting. Opening the LE300 device voids
any and all warranty claims.
• Best operating temperature is between 15 and 20 °C. Higher temperatures shorten the
lifespan of the batteries. Do NOT place device in direct sunlight!
• Protect the LE300 against heat (e.g. prolonged sun exposure) and fire and from water.
Do NOT store or operate the LE300 near hot or flammable objects.
• Install this device step by step as written in this manual for best results.
• After installation, the device needs to be fully charged.
• Do NOT charge the device over an extended period, if the device is unused.
• After prolonged storage period, it may be necessary to charge and discharge the device
numerous times to achieve the full performance capability.
• Follow all safety precautions during installation of device & handling batteries.
• Improper handling of batteries may introduce a risk of battery explosion.
• Keep batteries away from children & animals.
• During handling of batteries no smoking or exposure to naked light & fire.
• Wear eye protection during installation process.
• When working with a battery and LE300, remove all personal metal items like watches, rings,
necklaces and bracelets. Metal items in contact with the battery terminals might cause a
short circuit with a very high electric current, which may heat up and melt nearby objects and
cause severe burns.
• Keep the LE300 not being used away from paper clips, coins, keys, nails, screws or other
small metal objects, that can make a connection from one terminal to another. Shorting the
battery-pack terminals together may cause burns or a fire. For short-circuiting damage
caused in this manner, any and all warranty claims shall be invalid.
