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Experience the convenience of charging your batteries while on the move. Don't miss out on the ultimate power bundle!
The Trolltek™ 12V 120Ah LiFePO4 battery delivers 1536Wh of lightweight, dependable power for 4WD, marine, caravan, RV and off-grid applications.
Built with premium LiFePO4 cells, a heavy-duty Bluetooth Battery Management System (BMS) and a fully sealed IP68 enclosure, it's designed for demanding installations where reliability, weight and usable battery capacity matter.
Check your battery directly from your smartphone using the Trolltek™ app. Bluetooth monitoring provides convenient access to state of charge, voltage, current and battery performance data without needing an additional battery monitor.
The Trolltek™ app is available for compatible iPhone and Android devices with no advertising or subscription fees.
Designed for harsh outdoor and marine environments, the heavy-duty enclosure is fully sealed and rated to IP68 for protection against dust and water ingress.
An integrated waterproof pressure-equalisation vent helps safely manage internal pressure while maintaining protection against moisture, dust and external contaminants.
The integrated heavy-duty BMS continuously manages battery operation and provides important protection functions including:
With up to 100A continuous discharge and 280A pulse current, the Trolltek™ 120Ah battery is suited to demanding 12V electrical systems and high-current accessories.
The BMS supports up to 100A continuous charging, allowing compatible lithium battery chargers and DC-DC charging systems to efficiently replenish the battery.
For alternator charging, a suitable lithium-compatible DC-DC charger is recommended.
Trolltek™ batteries use new UL-certified LiFePO4 pouch cells selected for long service life, stable performance and excellent usable capacity.
Heavy-duty internal supports secure the cells and wiring to improve stability and durability in demanding mobile and marine installations.
Designed to operate across a wide range of conditions, with an operating temperature range of -20°C to 60°C.
Charging is not recommended below 0°C. Maximum recommended storage temperature is 45°C. This battery is not recommended for under-bonnet installation.
Please refer to Trolltek™ documentation for complete certification and transport information.
Every Trolltek™ lithium battery is backed by a 5-year battery warranty, giving you confidence in your power system for years to come.
Ideal for 4WD and touring setups, caravans, RVs, marine applications and off-grid power systems where dependable lithium power and convenient Bluetooth monitoring are essential.
Installation & Setup Resources: Trolling Motor Setup
Select a Trolltek™ DC/DC charger to match the Lithium battery voltage, for example, if running a 36V Lithium battery, select TTKCH3 that is designed to charge 36V batteries.
Connect power to the input cables (typically 12V) and connect the lithium battery to the output cables ready to charge.
The DC/DC charger won't turn on until a +12V signal is supplied to the yellow input trigger wire. If the trigger wire function isn't required, connect the yellow wire to the red input wire and the DC/DC will be permanently activated.
Example, if incorporating the Trolltek™ DC/DC charger into a boat with trolling motor setup, users would typically take the input 12V power from the boat's primary starting battery as this is connected to the outboard. As the DC/DC draws power, the outboard should replenish power from the outboard charging system.
Note, the DC/DC does not monitor the supply battery voltage so has potential to draw down the starting battery voltage. To overcome this possible scenario, users can connect the yellow trigger wire to the boat engine run signal so the DC/DC is only running when the outboard is running. This works well assuming the outboard can deliver 438W of power (~36A @ 12V). Some outboards won't be able to deliver this power when the engine is idling so there is still a risk of flattening the starting battery.
The ultimate solution is to incorporate the Trolltek™ Programmable Voltage Sensing Relay into the design. The PVSR monitors the starting battery voltage and only activates the relay to deliver power to the DC/DC charger under optimal conditions that the user programs. For example, if the starting battery voltage increases to 13.2V or greater for 30 seconds, the PVRS can be programmed to automatically close its relay contacts which powers the DC/DC charger. However, if the starting battery voltage drops to 12.3V for a period of 5mins, the PVSR is programmed to open the relay contacts and turn the DC/DC charger off. Incorporation of the PVSR eliminates the potential for the DC/DC charger accidently drawing down the starting battery whilst maximising the run time for the lithium battery charger and accommodating for periods where the boat might be idling.
Find our Manual here

|
VOLTAGE |
12V 13.4-13.8V (after charging) |
| CAPACITY |
120AH/ 1536 WH |
| BMS |
Included with Bluetooth connection Trolltek app available for iPhone and Android monitoring (free download, no advertising or subscription fees) Low voltage protection High voltage protection Over temperature protection |
| MAX. CONTINUOUS CHARGING | 100A |
| MAX. CONTINUOUS DISCHARGE | 100A |
| MAX. PULSE CURRENT | 280A |
| MAX. STORAGE TEMP. | 45°C - Not recommended for under bonnet installations |
| CELLS |
New, UL Certified, Pouch cells Capable of 6,500+ cycles based on 50% DOD (Depth of discharge) |
| PARALLEL/SERIES CONNECTIONS |
Parallel - no limit Series - Max. 4 for a 48V system |
| ENCLOSURE | IP68 - Fully sealed, waterproof, submersion tested |
| DIMENSIONS & WEIGHT |
120AH / 340 (L) x220 (W) x170mm (H) / 12.2 kg |
| WARRANTY | 5yrs |