THUMPER
Standard Lithium 320AH LiFePO4 Bluetooth Battery
Standard Lithium 320AH LiFePO4 Bluetooth Battery
SKU:TL320-200
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🔋 Thumper Lithium 320Ah Standard LiFePO4 Battery
High-capacity 12.8V 320Ah LiFePO4 battery with Bluetooth monitoring, 200A BMS, 4,096Wh capacity, BMS reset switch, and 5-year warranty.
The Thumper Lithium 320Ah Standard LiFePO4 Battery is a powerful deep cycle lithium battery designed for caravans, 4WDs, motorhomes, marine setups, off-grid systems, and high-capacity auxiliary power applications.
Built with prismatic LiFePO4 cells, this battery delivers 320Ah / 4,096Wh of usable lithium power while weighing less than half of a traditional AGM battery setup. It is fully sealed, maintenance-free, and designed to be mounted on any angle for flexible installation.
Equipped with an internal Battery Management System, Bluetooth monitoring through the Thumper App, and a fitted BMS reset switch, the TL-320 provides safe charging, controlled discharging, system protection, and easy battery monitoring from your smartphone.
✅ Key Benefits
🔋 320Ah / 4,096Wh Lithium Capacity
Provides serious usable energy for large caravan, 4WD, marine, and off-grid power systems.
⚡ 200A BMS Capacity
Supports continuous discharge up to 200A, making it suitable for high-demand 12V systems.
📈 300A BMS Upgrade Available
Optional BMS upgrade available for applications requiring higher output capability.
📱 Bluetooth Monitoring via Thumper App
Monitor battery capacity, voltage, charge current, discharge current, cell balance, estimated runtime, and more.
🧠 Internal Battery Management System
Protects the battery from over temperature, under voltage, over voltage, over current, short circuit, and unsafe operating conditions.
🔄 BMS Reset Switch Fitted
Allows the battery to be reactivated if the BMS shuts down due to excessive discharge or overload.
⚖️ Less Than Half the Weight of AGM
Provides heavy-duty deep cycle performance with significantly reduced weight compared to traditional lead acid batteries.
🔌 Higher Voltage for Longer Runtime
Maintains terminal voltage higher throughout each cycle, helping appliances run longer and more efficiently.
🔋 Deep Cycle Lithium Performance
Designed to provide increased usable capacity and improved runtime for heavier draw appliances.
🧰 Flexible Mounting
Fully sealed construction allows the battery to be mounted on any angle.
🔗 Expandable Battery Bank Options
Parallel connection has no limit, and series connection is supported up to 4 batteries / 51.2V maximum.
🛠️ 5-Year Warranty
Backed by a 5-year warranty from date of purchase.
🔧 Suitable Applications
🚐 Caravan lithium battery systems
🚙 4WD auxiliary power systems
🏕️ Off-grid camping setups
🚍 Motorhomes and RVs
🛥️ Marine auxiliary battery systems
☀️ Solar battery storage
⚡ Inverter power systems
🧊 Fridges and freezers
📡 Starlink and communications equipment
🔋 High-capacity deep cycle power systems
📱 Bluetooth App Monitoring
The Thumper Batteries App is available as a free download and allows the battery to be monitored and controlled from your smartphone.
| Bluetooth App Feature | Details |
|---|---|
| Battery Capacity | View available battery capacity |
| Battery Voltage | Monitor live battery voltage |
| Percentage Remaining | View remaining battery level from 0–100% |
| Charging Current | Monitor charge input current |
| Discharge Current | Monitor load output current |
| Battery Output Disconnect | Remotely disconnect discharge loads |
| Battery Charge Disconnect | Remotely disconnect charging inputs |
| Auto Cell Calibration | Supports automatic cell calibration |
| Auto Cell Protection | Helps protect internal cells |
| Estimated Time Remaining | View estimated runtime |
| Estimated Charging Time | View estimated recharge time |
| Ah Capacity Remaining | Monitor remaining amp hour capacity |
| Total Cell Balancing | View cell balancing data |
| High Cell Voltage | Monitor high cell voltage condition |
| Low Cell Voltage | Monitor low cell voltage condition |
| Cell Voltage Difference | View cell voltage variation |
| Dual Battery Sensor Monitoring | Supports dual battery sensor monitoring |
| Parallel Link Reprogramming | Ability to parallel link and reprogram Ah capacity, passcode required |
Some advanced app features may require a passcode.
🔄 Bluetooth Charge & Discharge Control
The Bluetooth App allows remote control of charge and discharge functions.
| App Control | Function |
|---|---|
| Charge Switch | Remotely disconnects all charge loads from the battery |
| Discharge Switch | Remotely disconnects all discharge loads from the battery |
| Storage Use | Discharge switch can be turned off when storing the battery |
| Remote Isolation | Allows charge or discharge control through the app |
Turning the charge switch OFF prevents the battery from accepting charge from any charging source, including a DC battery charger.
Turning the discharge switch OFF prevents the battery from running appliances by disconnecting all loads from the battery. This is ideal when storing the battery.
🧠 Internal Battery Management System
The BMS is the internal control system that manages battery safety, performance, and protection.
| BMS Function | Details |
|---|---|
| Discharge Capacity Control | Manages maximum discharge load |
| Input Charge Rate Control | Manages accepted charge input |
| Operating Temperature Monitoring | Monitors battery temperature |
| Low Voltage Disconnect | Protects the battery from excessive discharge |
| Reset Voltage Control | Allows recovery after protection events |
| Bluetooth Capability | Enables app-based monitoring and control |
| Protection Parameters | Controls safety limits for the battery |
The BMS supports safe charging and discharging with over temperature protection, under voltage cut-off, over voltage cut-off, and internal short circuit protection.
🔘 BMS Reset Switch
In most cases, the BMS will reset when a battery charger is connected. If it does not reset, the built-in BMS reset switch can help wake the battery after excessive discharge or overload.
How to Use the BMS Reset Switch
| Step | Action |
|---|---|
| 1 | Connect the battery to a 240V battery charger |
| 2 | Turn the charger ON |
| 3 | Press and hold the BMS reset switch for approximately 30–90 seconds |
| 4 | Once the charger starts charging normally, release the switch |
| 5 | Allow the battery to charge normally |
Some chargers require voltage to activate charging and may not reset the BMS under normal conditions. If available, set the charger to power supply mode to activate the BMS, then switch back to battery charger mode after the reset is successful.
📏 Technical Specifications
| Specification | Details |
|---|---|
| Product | Thumper Lithium 320Ah Standard LiFePO4 Battery |
| Model No. | TL-320 |
| Battery Type | LiFePO4 Lithium Deep Cycle |
| Cell Type / Chemistry | Prismatic / LiFePO4 |
| Nominal Voltage | 12.8V |
| Rated Capacity | 320Ah |
| Energy Capacity | 4,096Wh |
| Bluetooth Connectivity | Yes, via Thumper App |
| BMS Capacity | 200A |
| BMS Upgrade Option | Yes, 300A BMS available |
| Parallel Connection | No limit |
| Series Connection | Maximum 4 batteries / 51.2V |
| Self Discharge Per Month | ≤3% |
| Discharge Capacity | 97%–100% |
| Warranty | 5 years from date of purchase |
📐 Dimensions & Weight
| Measurement | Details |
|---|---|
| Length — Base | 340mm |
| Length — Lid | 395mm |
| Width — Base | 185mm |
| Width — Lid | 205mm |
| Height — Total | 265mm |
| Height with Terminals | 275mm |
| Weight | 24.6kg |
🌡️ Operating Temperature Range
| Operating Condition | Rating |
|---|---|
| BMS High Temperature Cut-Out | 65°C ± 3°C |
| BMS Reconnect Temperature | 50°C |
| Discharge Temperature | -20°C to 60°C ± 25% relative humidity |
| Charge Temperature | 0°C to 45°C ± 25% relative humidity |
| Storage Temperature | -10°C to 40°C ± 25% relative humidity |
🔌 Charging Specifications
| Charging Specification | Details |
|---|---|
| Recommended Charge Current | 10A – 120A |
| Maximum Charge Current | ≤150A |
| Recommended Charging Voltage | 14.2V – 14.6V |
| Float Charge Voltage | ≤13.8V |
| Boost Charge Voltage | ≤14.2V |
| Charge Current — 0°C to -10°C | <0.1C |
| Charge Current — -20°C to -10°C | <0.05C |
The battery is compatible with chargers that have an AGM or lithium setting, although a dedicated lithium charger is recommended for best performance and service life.
⚡ Discharge Specifications
| Discharge Specification | Details |
|---|---|
| Maximum Continuous Discharge Current | 200A |
| Peak Discharge Current | 300A for 1–3 seconds |
| BMS Current Cut-Off | >160A for 10 seconds |
| BMS Current Cut-Off | >170A for 3 seconds |
| BMS Current Cut-Off | >200A for 1 second |
| BMS Voltage Cut-Off | 10.0V |
| BMS Voltage Reconnect | >10.8V |
🔁 Cycle Life
| Cycle Rating | Details |
|---|---|
| Cycle Capacity @ 100% DOD | 4,000 cycles |
| Cycle Capacity @ 80% DOD | 5,000 cycles |
This provides significantly increased cycle life compared with traditional lead acid batteries.
⚠️ Important Usage Notes
Please confirm your required battery capacity, charging system, inverter size, cable sizing, fuse protection, BMS rating, mounting space, and system compatibility before purchase or installation.
Important:
✅ Designed for deep cycle auxiliary power systems
✅ Suitable for caravans, 4WDs, RVs, marine, and off-grid use
✅ Fully sealed and can be mounted on any angle
✅ Lithium charger recommended for best results
✅ Compatible with AGM or lithium charging settings
✅ BMS reset switch fitted
⛔ Not designed for engine starting
⛔ Not designed for under-bonnet installation
🔎 Why Choose the Thumper Lithium 320Ah TL-320?
The Thumper Lithium 320Ah Standard LiFePO4 Battery is designed for users who need serious off-grid capacity, high usable energy, Bluetooth monitoring, and reliable deep cycle performance.
With 320Ah capacity, 4,096Wh of energy, a 200A BMS, optional 300A BMS upgrade, long cycle life, flexible mounting, and integrated safety protection, it is a strong choice for larger caravan, 4WD, motorhome, marine, and off-grid power systems.
📦 What’s Included
🔋 1 x Thumper Lithium 320Ah Standard LiFePO4 Battery — TL-320
🛒 Order with Confidence
Choose the Thumper Lithium 320Ah Standard LiFePO4 Battery for high-capacity lithium power, Bluetooth monitoring, BMS protection, flexible mounting, long cycle life, and dependable performance for serious off-grid and touring power systems.
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