170AH Lithium Battery LiFePO4 Deep Cycle Battery Giant 12V

SKU: GIANT-170AH-12V-2024
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170Ah Lithium Battery LiFePO4


Unmatched Performance and Longevity 

Introducing our 170Ah Lithium Iron Phosphate (LiFePO4) Battery: the pinnacle of energy storage solutions, offering unmatched performance, reliability, and longevity. Ideal for renewable energy systems, camping and caravanning, marine applications, and backup power, this cutting-edge battery is engineered to meet the highest demands of modern energy needs. Discover unparalleled efficiency and durability with our state-of-the-art LiFePO4 battery.


Key Features:

  • High Capacity and Efficiency: With a 170 amp-hour (Ah) capacity, this battery delivers ample power for extended periods, ensuring your devices and systems run smoothly and efficiently. The high energy density of LiFePO4 technology allows for more power storage in a compact size.
  • Long Cycle Life: Designed to last, our LiFePO4 battery offers a cycle life of over 5000 cycles at 80% depth of discharge (DoD), significantly longer than traditional lead-acid batteries. This ensures a longer lifespan and reduced replacement costs.
  • Fast Charging: Benefit from faster charging times compared to conventional batteries. Our 170Ah LiFePO4 battery can be rapidly recharged, allowing you to get back to using your power system quicker.
  • Lightweight and Compact: Weighing significantly less than lead-acid batteries, this lithium battery is easy to handle and install, making it perfect for mobile and stationary applications where weight and space are critical.
  • Enhanced Safety: Lithium Iron Phosphate chemistry provides superior thermal and chemical stability, making it one of the safest lithium battery types available. It is non-toxic, non-contaminating, and thermally stable, with built-in protection against overcharging, over-discharging.
  • Maintenance-Free: Unlike traditional batteries, our LiFePO4 battery is maintenance-free, eliminating the need for regular checks and servicing. Enjoy hassle-free operation with consistent, reliable power.
  • Wide Operating Temperature Range: Designed to perform in various environmental conditions, this battery operates efficiently across a wide temperature range, from -20°C to 60°C (-4°F to 140°F), making it suitable for diverse applications.

100AH Lithium Deep Cycle Battery Online

Why Choose a Giant 170Ah LiFePO4 Battery

Our 170Ah LiFePO4 battery stands out for its superior performance, safety, and longevity. Whether you need a dependable power source for renewable energy, transportation, marine, or backup applications, this battery offers the efficiency and reliability you need. With its lightweight, maintenance-free design and enhanced safety features, it’s the perfect choice for modern power solutions.

5 year battery warranty - 12 month full replacement warranty with 48 month pro-rata replacement warranty

With unrivalled performance, longevity, and reliability, a Giant 170AH Lithium Battery is the perfect price point and choice for various power applications. Giant prismatic lithium cells are UL1642 certified and comply with IEC62619 standards.

 **This battery will work with trolling motors. However, if you allow heat, fluids and other contaminants to damage the battery, unfortunately, it will void your warranty. Protect your battery via a quality waterproof marine battery box or weather enclosure. 

Upgrade to Lithium Power: A Superior Alternative to AGM Batteries

Are you considering replacing the AGM deep cycle batteries in your camper, RV, caravan, or campervan? Upgrade to Giant Power Lithium Batteries for unparalleled performance and reliability.

Giant Power Lithium Batteries are designed as a true drop-in replacement, providing a seamless transition from AGM batteries. Each cell is protected by an internal 150AMP Battery Management System (BMS), ensuring optimal performance and safety. The BMS control board protects against cell imbalance and high voltage situations, significantly extending the battery's lifespan.

Why Choose Giant Power Lithium Batteries?

  • True Drop-In Replacement: Effortlessly switch from AGM to lithium with our user-friendly design, compatible with existing systems.
  • Enhanced Safety: The integrated 150AMP BMS safeguards against cell imbalance, overcharging, and high voltage, ensuring a longer battery life.
  • High-Quality Deep-Cycle Power: Perfect for applications requiring a reliable and durable deep-cycle power supply.
  • Lightweight and Efficient: Lithium batteries are lighter and more efficient than traditional AGM batteries, providing more power without the extra weight.
  • Maintenance-Free: Enjoy the convenience of maintenance-free operation, eliminating the need for regular checks and servicing.

Upgrade to Giant Power Lithium Batteries for your next adventure and experience the benefits of advanced lithium technology. Reliable 12V power has never been this efficient and long-lasting.

Charging Your Lithium Battery

Using your existing AGM charger for Giant Lithium Batteries is a convenient temporary solution, getting your battery to 95% charge. For best results, transition to a charger with a lithium profile to achieve full charge and enhance the longevity and performance of your battery. Enjoy the flexibility and reliability of Giant Lithium Batteries without immediate charger upgrades, but plan for optimal charging in the long run.

We Suggest The Ardent 12V Battery Charger:

12V Lithium Battery Charger

DC-DC Charging For Lithium Batteries

Regarding DC-DC Chargers and solar controllers, you must change these to LiFePO4-specific models, which can charge your Lithium batteries to an entire 100% State of Charge. The advantage of using a LiFePO4 charge profile is that it allows users to get the total capacity out of their lithium battery, as the DC-DC LiFePO4 setting will prolong the battery life. You need a DC-DC charger to effectively manage the power input in a lithium battery. **If you are charging from an alternator, you will need a DC-DC Charger that is designed to manage solar specific to lithium (LiFEPO4).

 ** This Giant Power battery is ideal for up to a 2200W inverter. If you exceed this limit, it could damage the BMS Management inside the battery. If you need a battery for a larger inverter size, please please freecall our experts or look at a larger battery size with a 200AMP BMS 


What is a BMS?


A Battery Management System (BMS) is an electronic system that manages a rechargeable battery (cell or battery pack), such as a lithium-ion or lithium iron phosphate (LiFePO4) battery. It is responsible for monitoring and controlling various aspects of the battery's operation to optimize performance.

Current Regulation:

  • 150AMP Rating: The BMS is designed to handle a maximum continuous current of 150 amperes. This means it can safely manage the flow of up to 150 amps of electrical current during charging and discharging cycles.
  • Overcurrent Protection: Prevents the battery from drawing or delivering too much current, which can cause overheating, damage, or safety hazards.

Cell Balancing:

  • Balancing Cells: Ensures that all the individual cells within the battery pack are charged and discharged evenly. This helps maintain the health and longevity of the battery by preventing any single cell from becoming overcharged or over-discharged.

Overcharge and Overdischarge Protection:

  • Overcharge Protection: Prevents the battery from being charged beyond its maximum voltage limit, which can damage the cells battery life.
  • Overdischarge Protection: Stops the battery from discharging below its minimum voltage limit, protecting the cells from deep discharge that can cause irreversible damage.

Voltage Monitoring:

  • Voltage Control: Continuously monitors the voltage of each cell and the overall battery pack to ensure it operates within safe parameters.

Temperature Monitoring:

  • Thermal Management: Monitors the temperature of the battery cells to prevent overheating. It can disconnect the battery from the load or charger if it detects unsafe temperature levels.

Short Circuit Protection:

  • Safety Against Short Circuits: Automatically disconnects the battery in the event of a short circuit to prevent damage and potential safety hazards.


  • Data Reporting: Some advanced BMS units can communicate with external devices, providing information about the battery’s status, health, and performance metrics.

Importance of a BMS

Safety: Protects against potential safety issues such as overheating, overcharging, overdischarging, and short circuits, reducing the risk of fires or explosions.

Performance: Ensures the battery operates efficiently by managing charge and discharge cycles, balancing cells, and maintaining optimal voltage levels.

Longevity: Extends the lifespan of the battery by preventing damage to the cells, ensuring they remain within safe operating conditions.

Reliability: Provides consistent and reliable power by managing and protecting the battery’s performance, making it suitable for demanding applications such as RVs, marine use, solar power systems, and backup power supplies.

A BMS is an essential component that ensures the safe, efficient, and reliable operation of lithium batteries by managing current, balancing cells, and providing protection against various potential issues. Its role is critical in maintaining the health and longevity of the battery, making it a vital feature for any high-performance lithium battery system.

100AH Lithium Deep Cycle Battery Online Designed for Off Road and Heavy Duty Applications

Perfect for use in caravans, marine, camping and home storage off grid applications. Solar, wind or battery charger compatible. Designed to handle the vibration when off road.

100AH Lithium Deep Cycle Battery Online Run in Series and Parallel

Configure giant lithium deep cycle batteries in a series-parallel arrangement of 4 in series and 6 in parallel to extend their runtime before needing a recharge.

100AH Lithium Deep Cycle Battery Online Portable Power Solutions

Giant batteries are lightweight, when compared to many other options, and have built in carry straps, which make moving around the campsite easy.

100AH Lithium Deep Cycle Battery Online Quality Copper-Silver Terminals

Quality Copper-Silver Terminals means small contact resistance and high corrosion resistance.



  1. Safety: LiFePO4 batteries are considered much safer than other lithium-ion battery chemistries. They have a stable chemistry and are less prone to thermal runaway, which reduces the risk of fire or explosion. This makes them suitable for applications where safety is critical, such as electric vehicles (EVs) and energy storage.

  2. Long Cycle Life: LiFePO4 batteries have a significantly longer cycle life compared to other lithium-ion batteries. They can endure a large number of charge-discharge cycles without significant capacity degradation. This makes them ideal for applications that require frequent cycling, such as electric vehicles, renewable energy storage, and backup power systems.

  3. High Power Density: LiFePO4 batteries offer high power density, enabling them to deliver high levels of power output. They can handle high discharge rates without experiencing a significant voltage drop, making them suitable for applications that require bursts of power, such as electric vehicles and power tools.

  4. Wide Operating Temperature Range: LiFePO4 batteries can operate efficiently in a wide range of temperatures, from extreme cold to high heat. They perform well even in low-temperature conditions, making them suitable for applications in cold climates.

  5. Environmental Friendliness: LiFePO4 batteries are considered more environmentally friendly compared to other battery chemistries. They contain non-toxic materials and do not include heavy metals like lead or cobalt, which are commonly found in other battery types. Additionally, LiFePO4 batteries have a higher energy efficiency, which contributes to reduced greenhouse gas emissions when used in renewable energy storage systems.

  6. Fast Charging Capability: LiFePO4 batteries can be charged at a faster rate compared to other lithium-ion batteries. They can accept a high charging current without compromising safety or cycle life. This feature is particularly beneficial in applications where quick charging is essential, such as electric vehicles and portable electronics.

  7. Maintenance-Free: LiFePO4 batteries do not require regular maintenance, such as electrolyte refilling or memory effect prevention. They have a low self-discharge rate, which means they can retain their charge for longer periods, reducing the need for frequent recharging.


These advantages make LiFePO4 batteries a preferred choice for various applications, including electric vehicles, renewable energy storage, power systems, marine applications, and off-grid power systems, where safety, longevity, high power output, and reliability are crucial factors.

How long do Giant Lithium Batteries last? 

Through extensive cycle testing, we have determined that, after 4,500 complete discharge cycles in extreme conditions, our lithium batteries will have 85% battery life left. The average user not operating their battery in extreme conditions will have 90% battery capacity after 5,000 cycles. Charging and discharging your Giant Batteries every day would last you between 15 and 20 years.With a 5-year pro-rata warranty, our lithium batteries will keep you powered for years. 

Calculating How Long Will a 100Ah Battery Last

It is easy to calculate how long will a 100Ah battery last for you. For calculations, you need to be aware of how the capacity is expressed. Let us go through these various expressions:

Watt hours is the load in Watts that the battery can sustain for one hour. It is expressed as ‘Wh’. It is better to use Watt hours than Amp hours for calculating run time. This is because Watt hours provide a better representation of energy consumption. The appliances you use will have a Watts rating instead of an Ah rating. Therefore, calculating the Wh of the battery is useful.

To calculate Watt hours, multiply the Amp-hours by the battery voltage. Most deep-cycle batteries work on a 12 V system. The amp hours in this situation are already fixed to 100 amp hours. Therefore the watt hours for a 100ah battery will be:

Wh = Amp hours x Voltage

= 100 Ah x 12 V

= 1200 Wh

When you design a 12V electrical system, you need to make sure your battery bank size matches your power requirements. Battery voltage matters for a variety of reasons. Namely, it allows you to determine how much power your battery is capable of supplying, how much voltage you need for certain electronics, and even the charge state. Measuring battery voltage is important because it allows you to determine the battery’s state of charge. The best way to do this is with either a multimeter or a battery monitor, or shunt setup such as the Victron Energy Battery Monitor BMV-712 or Ardent Smart Shunt.

5 year battery warranty - 12 month full replacement warranty with 48 month pro-rata replacement warranty

Overall, LifePO4 batteries have the safest lithium chemistry. Why?

Lead acid, and most other battery types don’t have the level of thermal and structural stability that LiFePO4 does. LiFePO4 is incombustible. It can withstand high temperatures without decomposing. It’s not prone to thermal runaway and will keep cool at room temperature. If you subject a LiFePO4 battery to harsh temperatures or hazardous events (like short-circuiting or a crash), it won’t start a fire or explode. This fact comforts many of our customers who use deep-cycle LiFePO4 batteries daily in an RV, boat, caravan, or camping application. 


For more information, please read our full warranty policy

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