SFK-300HP
Lithium Iron Phosphate
09
Usage Restrictions:
SAFE MODE
Lithium Iron Phosphate batteries are not recommended for applications that require high amperage
bursts such as starting engines or use in DC arc welding. This will trigger the maximum amp cut-off in the
battery’s built in BMS (battery management system) and will engage a 30 second shut down.
If you exceed the amp limit of your battery or have gone to below 0% SOC and find that the battery is not
outputting power, it may be because the battery has gone into safe mode. Safe mode protects the battery
from damage and requires a cool down period of up to 5 minutes before it can be available for use again.
In order to take out the battery of safe mode, you will need to apply an external power source of 13 volts or
higher to “wake up” the battery, this can be done using any standard 12v charger.
Usage Restrictions:
MAX AMPS & VOLTAGE
Sun Fun Kits SFK-300HP batteries can be connected in parallel or in series. You can connect up to 4
batteries in series to achieve a maximum voltage of 58 volts (this is generally shown as 48v, the nominal
reading) and you can parallel these batteries up to 4 units. Regardless of how you configure your batteries,
we recommend you keep your combined power output to under 4,000 watts for sustained use with a max
peak of 6 kw (30 seconds) and a maximum amp discharge of 150 amps per battery. You will also need to
ensure that you have selected the proper wire gauge and wire materials to ensure you can safely deliver
your desired power output. A brief chart lists power usage and wire / gauge requirements below: