Projecta LB100-HD
Intelli-GRID 12V LiFePO4 Lithium Battery
12.8V 100Ah Lithium Battery
High Discharge Lithium Battery
The Projecta LB100-HD is a 12.8V 100Ah LiFePO4 lithium battery designed for Intelli-GRID, RV, caravan, inverter and auxiliary power applications.
It provides high discharge capability, built-in state of charge monitoring, communication ports and local or remote battery isolation.
The LB100-HD is suitable for applications requiring high current output, including powering inverters up to 2000W, when installed correctly and used within the battery’s rated limits.
The LB100-HD includes:
12.8V 100Ah LiFePO4 battery
1280Wh nominal energy
150A maximum discharge current
225A peak discharge current for 10 seconds
Suitable for powering up to 2000W inverters
Built-in current shunt for accurate State of Charge, SOC
Top-mounted battery indicator
Local battery switch
Remote battery switch capability
Communication ports for Intelli-GRID systems and displays
Communication between additional batteries
Mounting feet for installation
Low self-discharge lithium technology
11kg lightweight design
Built-in protection against over-voltage, under-voltage, over-current, high temperature, low temperature and short circuit
The LB100-HD is designed for 12V auxiliary power systems, including:
Caravans
RVs
Off-grid systems
Auxiliary battery systems
Inverter systems
Intelli-GRID systems
Battery monitor and display systems
Yes.
The manual states the LB100-HD has a 150A high discharge current and is suitable for powering up to 2000W inverters.
For larger inverter loads, multiple batteries may be required.
No.
The LB100-HD includes a built-in current shunt to provide accurate State of Charge, SOC.
This means an additional external current shunt is not required for supported Projecta monitoring systems.
Use a lithium-compatible charger suitable for LiFePO4 batteries.
The charger must match the battery’s required charging voltage and current limits.
The LB100-HD charge voltage is:
14.2V
The maximum charger current is:
100A
The standard charge current is:
50A
Do not charge the battery:
Above 14.6VDC continuously for more than 24 hours
Using a charger with automatic desulfation
Using an incompatible lead-acid-only charger
Using incorrect polarity
Using a damaged or modified charging system
Automatic desulfation modes are not suitable for LiFePO4 lithium batteries.
Yes.
The LB100-HD includes a top-mounted battery indicator.
This allows the user to check battery status directly from the battery.
Yes.
The LB100-HD includes a battery switch function.
The battery can be isolated locally or remotely, depending on the system setup.
This is useful when storing the vehicle or when the connected load will not be used for an extended period.
Yes.
The optional remote battery monitor is sold separately.
Part number:
LBM-BT
The LBM-BT can provide:
State of Charge, SOC percentage
LCD battery status display
Remote battery ON / OFF control
Alarm and fault indication
Bluetooth monitoring and control via smartphone
Additional monitoring with compatible Intelli-RV and Intelli-GRID components
No.
The LB100-HD has a built-in shunt, so no additional current shunt is required for supported monitoring.
Yes.
The LB100-HD can be connected in series up to 4 batteries.
This can create:
48V 100Ah system
Yes.
The LB100-HD can be connected in parallel up to 4 batteries.
This can create:
12V 400Ah system
Before connecting batteries in series or parallel:
Fully charge all batteries.
Confirm all batteries are the same model.
Confirm all batteries are in good condition.
Confirm battery voltages are closely matched.
Use suitable cables, fuses and installation practices.
Follow the system wiring requirements.
When connecting batteries in parallel, the manual states that the discharge current can be added, but a discharge ratio of 0.75 must be applied.
Example:
2 x LB100-HD batteries in parallel
2 x 150A x 0.75 = 225A continuous discharge current
For a 3000W inverter, the manual recommends 3 x LB100-HD batteries, giving approximately 338A continuous discharge current.
Before installing or using the LB100-HD:
Do not short-circuit the battery.
Do not reverse polarity.
Do not disassemble the battery.
Do not deform or modify the battery.
Do not charge above 14.6VDC continuously for more than 24 hours.
Do not use a charger with automatic desulfation.
Store the battery in a cool, dry and well-ventilated area.
Charge the battery at least every 6 months, or when voltage drops below 12.8VDC.
Ensure the battery is fully discharged before proper disposal.
Keep terminals clean and secure.
Protect the battery from impact, crushing or damage during transport.
Store the battery:
In a cool, dry and well-ventilated area
Away from moisture
Away from direct heat sources
Away from flammable materials
Protected from impact or crushing
To maintain battery life, recharge the battery fully every 3 to 6 months.
The warning section also states to charge the battery at least every 6 months or when voltage drops below 12.8VDC.
If the connected load will not be used for an extended period:
Disconnect the battery from the load, or
Turn the battery OFF using the battery switch
This helps prevent battery discharge and over-discharge.
Regularly check:
Battery terminals are clean
Terminal screws are secure
Battery case is not damaged
Cables are correctly connected
Communication cables are secure
Battery indicator operates normally
No signs of overheating, swelling or physical damage are present
Check the following:
Battery switch is ON.
Battery voltage is above discharge cut-off.
Battery terminals are clean and tight.
Positive and negative cables are connected correctly.
Main fuse or circuit breaker is not blown or tripped.
Connected load does not exceed the battery rating.
Battery protection has not activated.
Communication cables are connected correctly if used with Intelli-GRID components.
Check the following:
Inverter size does not exceed the battery capability.
Battery State of Charge is sufficient.
Battery voltage is not below cut-off.
Inverter surge current is not exceeding the battery peak rating.
Battery cables are correctly sized.
Cable connections are tight.
Fuse or circuit breaker rating is suitable.
Multiple batteries are used for larger inverter loads where required.
A single LB100-HD is suitable for up to 2000W inverter applications as stated in the manual.
Recharge the battery using a suitable LiFePO4 charger.
If the battery voltage has dropped below 12.8VDC during storage, recharge the battery before further use.
If the battery does not recover, stop using it and contact Projecta support.
Check the following:
Charger is suitable for LiFePO4 batteries.
Charge voltage is correct.
Charger is not in desulfation mode.
Charger output polarity is correct.
Battery switch is ON if required by the system.
Battery terminals are clean and tight.
Battery temperature is within operating range.
Battery protection has not activated.
Do not continue charging if the battery becomes hot, swollen, damaged or behaves abnormally.
Check the following:
Battery has completed a full charge cycle.
The built-in shunt is supported by the connected monitor or display.
Communication cables are connected correctly.
Battery monitor settings are correct.
Multiple battery configuration has been set up correctly.
If using the optional LBM-BT, confirm the monitor is connected correctly and reading the correct battery.
Yes, if the system is designed correctly and all charge and discharge limits are observed.
The connected load and charger must not exceed the battery’s current limits or system wiring limits.
The LB100-HD includes protection against:
Over-voltage
Under-voltage
Over-current
High temperature
Low temperature
Short circuit
If protection activates, remove the cause of the fault before attempting to use or charge the battery again.
Part number: LB100-HD
Battery type: LiFePO4 lithium battery
Nominal voltage: 12.8V
Nominal capacity: 100Ah
Nominal energy: 1280Wh
Charge voltage: 14.2V
Discharge cut-off voltage: 11.2V
Standard charge current: 50A
Maximum charger current: 100A
Maximum discharge current: 150A
Peak discharge current: 225A for 10 seconds
Operating temperature: -20°C to 60°C
Maximum batteries in parallel: 4
Number of discharge cycles: 3000
Weight: 11kg
IP rating: IP20
Approximate dimensions: 310 x 165 x 187mm
Before installation:
Confirm battery polarity.
Use suitable cable size for the load current.
Use suitable fuses or circuit protection.
Secure the battery using the mounting feet.
Ensure terminals are clean and tight.
Confirm the battery location is dry and well ventilated.
Ensure the battery is protected from impact.
Confirm the connected charger is suitable for LiFePO4 batteries.
No.
The LB100-HD has an IP20 rating.
It should be installed in a protected indoor or enclosed location where it will not be exposed to water or moisture.
Escalate the case if:
The battery will not charge after charger and wiring checks.
The battery will not power a load after fuse, switch and wiring checks.
The battery case is swollen, cracked, deformed or damaged.
The battery has been short-circuited or reverse connected.
The battery has been exposed to water.
The customer reports smoke, burning smell, abnormal heat or sparking.
The battery repeatedly enters protection mode.
Communication with Intelli-GRID, monitor or additional batteries does not work.
The system uses multiple batteries and imbalance or configuration issues are suspected.
Warranty assessment is required.