BUKNUWO 12V 628Ah Bluetooth LiFePO4 Battery with 200A Smart BMS

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BUKNUWO 12V 628Ah Bluetooth LiFePO4 Battery with 200A Smart BMS

$959.99 $1,066.99 Save 10%
Fall Power Sale — Stay Off-Grid Longer
Embrace autumn adventures with high-capacity LiFePO4 power for extended RV stays, remote campsites, and off-grid living.
Free Shipping $99+ orders
5-Year Warranty
Final Sale No Returns
✓ Bluetooth 5.0 App Monitoring — check SOC, voltage, current and battery status
✓ Built-in 200A Smart BMS — multiple electrical and temperature protections
✓ 8038Wh Deep-Cycle Power — designed for RV, solar, camping and off-grid use
✓ 4000+ Cycles at DOD — charging protection activates below 32°F (0°C)
✓ Energy Storage Use Only — not designed for engine starting

About this product

See the 12V 628Ah Battery in Action

Explore the battery through a hands-on video review.

High-Capacity 12V Power for RV & Off-Grid Living

The BUKNUWO 12V 628Ah Bluetooth LiFePO₄ battery provides 8.04kWh of nominal energy storage for full-time RV living, extended boondocking, and solar-powered off-grid systems. Its high capacity helps support essential appliances and electronics during longer stays away from shore power.

More Energy Storage with Fewer Battery Connections

With 628Ah of capacity in a single battery, BUKNUWO helps simplify high-capacity 12V battery banks. Compared with using multiple smaller batteries to achieve similar storage capacity, a single 628Ah unit reduces battery-to-battery connections and supports a cleaner RV or off-grid installation.

200A Continuous Discharge for Demanding RV Power Systems

The BUKNUWO 12V 628Ah LiFePO₄ battery features a maximum continuous discharge capability of 200A, supporting compatible inverters and 12V power systems. It provides stored energy for RV refrigeration, lighting, televisions, and other everyday electrical loads through a properly configured system.

Smart Bluetooth Monitoring from Your Phone

Monitor your BUKNUWO 12V 628Ah battery through the compatible Bluetooth app. View state of charge (SOC), voltage, current, and available battery operating information directly from your smartphone, making it easier to track your RV or off-grid energy system.

Integrated BMS Protection for Reliable Battery Operation

The BUKNUWO 12V 628Ah LiFePO₄ battery features an integrated Battery Management System (BMS) with overcharge, over-discharge, overcurrent, short-circuit, and temperature protection. These built-in safeguards help manage battery operation during charging and discharging within specified operating conditions.


Long-Lasting LiFePO₄ Power with 4000+ Cycles

Built with lithium iron phosphate (LiFePO₄) chemistry, the BUKNUWO 12V 628Ah battery offers a rated cycle life of 4000+ cycles. Its high-capacity cell configuration and integrated BMS support repeated charging and discharging for long-term RV, solar, and off-grid energy storage.

Flexible Charging for RV, Solar & Off-Grid Systems

Recharge the BUKNUWO 12V 628Ah LiFePO₄ battery using compatible solar, alternator, or shore power charging equipment. Pair it with an MPPT solar charge controller, a DC-DC charger, or a compatible LiFePO₄ AC charger to meet your off-grid charging needs.

Plan Your RV Battery Installation with Confidence

Check the dimensions, terminal layout, and available installation space before installing your BUKNUWO 12V 628Ah battery. Designed for high-capacity energy storage applications, it can be integrated into appropriately sized RV and off-grid battery compartments and is backed by a 5-year warranty.

Technical Specifications

Cell Type LiFePO4
Warranty 5 Years
Cycle Life 4000+ Cycles
Nominal Voltage 12.8V
Rated Capacity 628Ah
Energy 8038Wh
Max. Expansion (Parallel & Series) 4S4P (Up to 51.2V 2512Ah /128.61kWh)
Certifications FCC, CE, UN38.3, FCC
Self-Heating NO
BMS 200A
Max. Continuous Output Power 2560W (Nominal DC Output)
Max. Continuous Charge Current 200A
Max. Continuous Discharge Current 200A
Charge Method CC/CV (Constant Current / Constant Voltage)
Charge Voltage 14.4V ± 0.2V
Recommend Charge Current 20A/50A
Charge Temperature 0°C to 45°C (32°F to 113°F)
Discharge Temperature -20°C to 60°C (-4°F to 140°F)
Storage Temperature -10°C to 50°C / 14°F to 122°F
Low-Temperature Protection Support
Terminals M8 Bolts
Size 25.19 × 9.64 × 8.86 in (L × W × H)
Weight 112.88 lbs
Housing Material ABS
Protection Class IP65

FAQs

The battery provides 8038Wh (8.04kWh) of nominal energy storage. Actual runtime depends on your appliances, daily energy consumption, inverter efficiency, and available charging sources. For example, a constant 500W AC load could run for approximately 13–14 hours under an assumed 85% inverter efficiency and 95% usable battery energy. Solar charging may extend runtime.

The battery supports a maximum continuous discharge current of 200A, equivalent to approximately 2560W of nominal DC power at 12.8V before inverter losses. A compatible 2000W inverter may be suitable, depending on actual load, efficiency, and startup surge. A 3000W inverter operating at full output would exceed the battery’s continuous discharge limit. Always verify inverter compatibility and system protection requirements.

Recharge using compatible solar MPPT, alternator DC-DC, or shore power LiFePO4 charging equipment. Charging time depends on charger output and battery state of charge. For example, a compatible 50A charger would take approximately 12.56 hours to deliver 628Ah under ideal constant-current conditions; actual charging time may be longer. Follow the battery's approved charging voltage and current specifications.

Multiple-battery configurations must follow the connection limits approved for this specific model. Before connecting batteries, confirm the supported series and parallel configuration, battery compatibility, and installation requirements with BUKNUWO. Use appropriately sized cables, fuses, and other protective devices.

The compatible BUKNUWO Bluetooth app allows you to view available battery information, including state of charge (SOC), voltage, current, and charging or discharging status. Follow the app instructions to pair your phone with the battery. If the device cannot be found, check Bluetooth permissions and ensure another phone is not already connected.

The integrated BMS provides overcharge, over-discharge, overcurrent, short-circuit, and temperature protection. Charging below freezing must follow the battery's specified temperature limits and low-temperature protection behavior. Do not attempt to bypass BMS protection. Contact BUKNUWO if you need to confirm the approved charging temperature for your battery.

Confirm the battery's dimensions, weight, terminal orientation, and available installation space before purchase. Secure the battery according to the approved installation instructions, and use appropriately sized cables, fuses, and circuit protection. This battery is designed for deep-cycle energy storage and is not intended for engine-starting applications.

The BUKNUWO 12V 628Ah battery is backed by a 5-year warranty, subject to the applicable warranty terms. Keep your purchase information and register your battery through the BUKNUWO warranty page. If you need assistance with charging, Bluetooth connectivity, installation, or battery operation, contact our customer support team.

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BUKNUWO
Zjwx

I got a 314Ah battery. I knew I wanted to a Li battery, when my brand new trailer battery went dead running the 12v refrigerator..
I picked buknuwo because the battery was easy switch. I just charged my solar controller setting and dropped in
The battery. I know I can run the refrigerator for 72 hours. I love buknuwo thank you Jade jiang

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BUKNUWO
ji wenbo

The BUKNUWO 12V 100Ah LiFePO4 battery makes sense for a camping setup focused on everyday essentials rather than power-hungry appliances. LED lights, a small fan and phone charging are the kinds of loads I would plan around, with refrigerator use depending on its actual energy consumption.

Bluetooth monitoring is a useful feature because it makes checking battery status more convenient. Still, I would keep an eye on daily consumption instead of assuming that 100Ah will cover an entire weekend.

The main consideration is how often charging is available. For modest loads and regular recharging, this capacity looks like a practical choice. For longer stays, more equipment or uncertain solar charging, I would consider a larger battery to leave more reserve.

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BUKNUWO
ji wenbo

The 12v 100Ah battery meets my basic camping needs, and the Bluetooth function allows me to monitor the battery's level and status in real time. If traveling long distances or using additional appliances, I would consider the 150Ah or 314Ah models. I believe they won't disappoint me, and I highly recommend them.

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BUKNUWO
ji wenbo

Its performance exceeded my expectations, and its standby time was long enough for me to use it for a long time

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BUKNUWO
jason emery

Easy to order. Fast shipping.