Five Practical Options
Choose from three 12.8V batteries and two 25.6V batteries with model-specific capacity and current ratings.
12V & 24V Deep Cycle LiFePO4 Batteries
BSM Series
A five-model LiFePO4 battery range for RV power, solar lighting and compact off-grid storage. Choose 12.8V or 25.6V with rated energy from 1.33kWh to 5.32kWh.
12.8 / 25.6 VRated voltage1.33–5.32 kWhRated energy range5 modelsSeries options
Battery overview
One Battery Range. Five Practical Choices.
The Bluesun BSM Series brings five compact LiFePO4 batteries together in one range. The models cover 12.8V and 25.6V nominal systems, with capacities from 104Ah to 280Ah and rated energy from 1.3312kWh to 5.3248kWh.
ABS enclosures, integrated smart BMS and Bluetooth monitoring support practical everyday use in compatible RV, solar lighting and small off-grid applications. Heating-assisted charging is listed in the supplied documentation.
Built-in Smart BMS
Integrated battery management supports cell balancing, protection and battery monitoring.
Bluetooth Monitoring
Use the supported mobile app to monitor battery status via Bluetooth.
Low-Temperature Heating
The published charging temperature range includes heating-assisted operation. Follow the supplied charging instructions.
Applications
Compact Power for Everyday Applications
Match the model to the system voltage, operating current, installation space and required runtime.
RV & Leisure Power
For compatible auxiliary power systems in recreational vehicles and other leisure applications.
Solar Lighting
Compact energy storage for compatible solar lighting systems, selected by voltage and load requirements.
Small Off-Grid Storage
For smaller standalone energy storage projects that use a compatible 12V or 24V battery architecture.
Technical data
Choose Your BSM Battery Model
Swipe through all five models or use the arrows. Each card lists the parameters specific to that battery.
01 / 05
BSM12104
- Rated voltage
- 12.8 V
- Rated capacity
- 104 Ah
- Rated energy
- 1331.2 Wh
- Voltage range
- 10–14 V
- Cut-off voltage
- 10 V
- Recommended charge current
- ≤50 A
- Max constant charge current
- 100 A
- Continuous discharge current
- 100 A
- Pulse discharge current
- 120 A / 30 s
- Dimensions (W × D × H)
- 331 × 171 × 217 mm
- Weight
- 11.7 kg
02 / 05
BSM12208
- Rated voltage
- 12.8 V
- Rated capacity
- 208 Ah
- Rated energy
- 2662.4 Wh
- Voltage range
- 10–14 V
- Cut-off voltage
- 10 V
- Recommended charge current
- ≤100 A
- Max constant charge current
- 200 A
- Continuous discharge current
- 200 A
- Pulse discharge current
- 220 A / 30 s
- Dimensions (W × D × H)
- 502 × 186.5 × 242 mm
- Weight
- 22.3 kg
03 / 05
BSM12280
- Rated voltage
- 12.8 V
- Rated capacity
- 280 Ah
- Rated energy
- 3584 Wh
- Voltage range
- 10–14 V
- Cut-off voltage
- 10 V
- Recommended charge current
- ≤100 A
- Max constant charge current
- 200 A
- Continuous discharge current
- 200 A
- Pulse discharge current
- 220 A / 30 s
- Dimensions (W × D × H)
- 522 × 244 × 222.5 mm
- Weight
- 25.8 kg
04 / 05
BSM24104
- Rated voltage
- 25.6 V
- Rated capacity
- 104 Ah
- Rated energy
- 2662.4 Wh
- Voltage range
- 20–28 V
- Cut-off voltage
- 20 V
- Recommended charge current
- ≤50 A
- Max constant charge current
- 100 A
- Continuous discharge current
- 100 A
- Pulse discharge current
- 120 A / 30 s
- Dimensions (W × D × H)
- 502 × 186.5 × 242 mm
- Weight
- 22.3 kg
05 / 05
BSM24208
- Rated voltage
- 25.6 V
- Rated capacity
- 208 Ah
- Rated energy
- 5324.8 Wh
- Voltage range
- 20–28 V
- Cut-off voltage
- 20 V
- Recommended charge current
- ≤100 A
- Max constant charge current
- 200 A
- Continuous discharge current
- 200 A
- Pulse discharge current
- 220 A / 30 s
- Dimensions (W × D × H)
- 635 × 244 × 220.5 mm
- Weight
- 35.4 kg
Shared Battery Features
- Battery chemistry
- LiFePO4
- Battery management
- Built-in smart BMS
- Monitoring
- Bluetooth mobile app
- Cycle life
- >6000 cycles
- Cycle test conditions
- 0.5C at 25°C, 80% DoD
- Design life
- 5+ years
Shared Operating Conditions
- Enclosure material
- ABS
- Enclosure protection
- IP65 (series overview)
- Humidity
- 5–95% RH
- Charge temperature
- −20°C to 45°C (with heating)
- Discharge temperature
- −20°C to 55°C
- Storage temperature
- −20°C to 45°C
- Listed certification
- CE / UN38.3
Model ratings follow the supplied BSM Series document. Series and parallel connection limits, charger settings and system compatibility must be confirmed before installation.
Product resources
BSM Series Product Documentation
Download the English product document for all five models, electrical ratings, dimensions, operating conditions and certification listings.
Product FAQ
BSM Series Battery FAQs
Practical guidance for choosing a model and checking system compatibility.
Which BSM Series models are available?+
The range includes BSM12104, BSM12208 and BSM12280 at 12.8V, plus BSM24104 and BSM24208 at 25.6V. See the model cards for capacity, energy, current, dimensions and weight.
Should I choose a 12V or 24V battery?+
Choose the battery to match the voltage architecture and operating range of the connected equipment. The nominal battery ratings are 12.8V and 25.6V respectively.
Can these batteries replace lead-acid batteries?+
They can be considered for suitable lead-acid upgrade projects after checking charger settings, voltage range, current limits, protection and physical fit. They are not automatically compatible with every existing lead-acid system.
Do the batteries support Bluetooth monitoring?+
The supplied document lists Bluetooth monitoring for all five models, using the supported mobile application.
Can I charge these batteries below freezing?+
The published charge temperature range is −20°C to 45°C with heating. Follow the model instructions and confirm the heating function and charging conditions for the supplied unit.
What cycle life is listed?+
The document states more than 6000 cycles at 0.5C, 25°C and 80% depth of discharge. This is a stated test condition, not a guaranteed service life for every installation.
Can the batteries be connected in series or parallel?+
Confirm the permitted connection method and maximum quantity with Bluesun for the selected model. Do not infer connection limits from the nominal voltage or external appearance.
Product inquiry
Find the Right BSM Battery for Your Project
Choose a model above or share your system voltage, load, quantity and application. Our team can help evaluate the suitable BSM Series battery.
12V & 24V Deep Cycle LiFePO4 Batteries
Model: BSM Series Category: Lithium Solar Battery