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| Brand Name: | BAIWAY |
| Model Number: | TF03K |
| MOQ: | 1 |
| Price: | $27-48/set (Retail price) |
| Payment Terms: | T/T |
| Supply Ability: | 5000pcs/month |
Designed specifically for RVs, the TF03K is a high-precision battery monitor featuring a 2.8-inch clear display. It simultaneously shows six key parameters—voltage, current, power, capacity, state of charge (SOC), and remaining usable time—eliminating the need for tedious switching between screens. This allows RV users to grasp their battery status instantly, significantly enhancing power management convenience and safety during travels.
Combining robust functionality with intelligence and efficiency, the TF03K supports manual screen brightness adjustment to suit various lighting conditions. When the battery is idle (neither charging nor discharging), it automatically enters a low-power standby mode and turns off the backlight. With an operating power consumption of just 12mA and standby consumption as low as 2mA, it minimizes its own drain on the RV battery.
A standout feature of the TF03K is its 1% measurement accuracy. Even the tiny standby currents from RV appliances are captured and displayed clearly and accurately, addressing blind spots that other monitors might miss—such as undetected power leakage. This precision ensures reliable energy data, giving users full visibility over every watt consumed. Additionally, the built-in customizable low-capacity alarm reminds users when battery levels drop below a preset threshold, effectively preventing damage from over-discharge and adding a critical layer of safety.
To accommodate diverse battery configurations in the RV market, the TF03K is compatible with mainstream battery types—from traditional lead-acid to advanced lithium batteries. It supports an ultra-wide voltage range of 8–120V, covering common RV electrical systems like 12V, 24V, 48V, and 72V. With a current measurement range of 0–750A, it reliably monitors charging and discharging even for high-power appliances onboard.
Equipped with a dot-matrix display, the TF03K battery monitor presents a range of battery parameters in a clear and easy-to-read layout. Through its multi-parameter interface, users can check essential battery data straight from the screen, which makes day-to-day monitoring more convenient.
A low-capacity alarm is built in to give a timely warning once battery capacity drops to a preset low level. Where an external alarm or control signal is required, a dry-contact output can also be provided, subject to the selected product configuration.
For system integration, the TF03K is available with a choice of communication options, such as RS485, TTL, or Bluetooth. The interface can be selected to suit the communication architecture and control requirements of the target battery system.
The TF03K is built for low-power operation, which makes it well suited to applications where the monitor has to stay active over long periods. With its compact monitoring functions, it fits battery systems in RV and camper applications, golf carts, forklifts, and other mobile or industrial equipment.
| Parameter | Min. | Nominal | Max. | Unit |
|---|---|---|---|---|
| Working voltage | 8.0 | 120.0 | V | |
| Working consumption | 8.0 | 12.0 | mA | |
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Standby consumption
|
|
1.0 | 2.0 | mA |
| Power off consumption | 50.0 | μA | ||
| Accuracy of collecting voltage | ±1.0 | % | ||
| Accuracy of collecting current | ±1.0 | % | ||
| Accuracy of collecting capacity | ±1.0 | % | ||
| Capacity detection range | 0.1 | 9999.0 | Ah | |
| 50A shunt current | 0.0 | 50.0 | 75.0 | A |
| 100A shunt current | 0.0 | 100.0 | 150.0 | A |
| 350A shunt current | 0.0 | 350.0 | 500.0 | A |
| 500A shunt current | 0.0 | 500.0 | 750.0 | A |
| Ambient temperature range | -10.0 | 25.0 | 50.0 | ℃ |
| Dimensions | 100*61*17 | mm | ||
| Complete set weight (50A/100A/350A/500A) | 210/270/420/700 | g |
Production workstations and personnel performing electronics manufacturing and quality-control tasks in the actual facility.
The photograph above shows the real electronics manufacturing environment of Shanghai Capdisp Technology Co., Ltd., including production workstations, electronic assembly equipment, and the staff engaged in manufacturing and inspection activities.
The TF03K battery monitor is produced in this same environment, following the confirmed product configuration and production requirements. The manufacturing process covers electronic component assembly, product processing, functional inspection, and the quality-control steps applied to the finished battery monitor.
Production and inspection of the TF03K are carried out in line with the specified product parameters, which cover the 2.8-inch dot-matrix display, multi-parameter battery monitoring, Bluetooth/RS485/TTL connectivity, low-capacity alarm, and dry-contact output.
This genuine factory image offers first-hand visual evidence of the manufacturing environment behind the product and helps customers see where production-related activities take place. Product specifications, inspection requirements, and supporting technical documents can be provided in line with the confirmed product configuration and project requirements.
Battery monitors can be used in any scenario involving battery packs. They continuously track the status of the battery pack and display key parameters such as remaining charge, current voltage, current, power, and other relevant data. This allows users to monitor battery health in real time, helping to protect the battery and extend its lifespan.
It is compatible with mainstream battery types on the market, such as lead-acid batteries, lithium-ion batteries, lithium iron phosphate batteries, sodium batteries, etc.
We provide a one-year warranty period. After one year, if the product is damaged due to its own quality issues, we will continue to offer repair or replacement services based on the specific circumstances. For cases where returns or exchanges are not possible due to reasons such as shipping costs, replacements will be sent with the next order.
Please reach out to us via the contact information on our "Contact Us" page.