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12V-300AH Lithium-Ion Battery Pack(LFP)

BSLBATT 12V 300AH lithium battery, Up to 8000 Cycles, Built-in Smart BMS, Perfect for RV, Solar, Marine, Overland/Van, and Off-Grid Applications.

Product Specification:

  • MOQ: 10pcs
  • Delivery time: 15-20 working days
  • Capacity of supply : About 2 million KVAH each year
  • Color: Color customizable
  • Payment methods : L/C, D/P,T/T, PayPal, Western Union
  • Port : Guangzhou/Shenzhen
More Information


This 12V 300AH Lithium Ion lelsure Battery is plug and plays for starting or deep cycle applications including Marine, RV, Golf, Solar, Off-Grid, Propulsion, and other applications requiring a lightweight lithium battery to replace Lead Acid, Gel, or AGM Batteries.

The 12V 300AH lithium battery BSLBATT® offers high-level safety through the use of rhombus cells in Lithium Phosphate technology (LiFePO4 or LFP).

The BSLBATT® 12 volt lithium battery pack range has been designed to replace lead-acid batteries advantageously, by offering a quadruple energy density for an equivalent weight and size.

Thanks to its technology, the BSLBATT® 12V 300AH lithium battery can be installed in any position (vertically, lying on the side or head down).


The electrical parameters of the BSLBATT® 12V 300AH lithium battery are compatible in all respects with those of an AGM lead battery of 12V. In the vast majority of cases, the charging system can be kept the same and no additional accessories are required to perform the replacement.

The products BSLBATT® 12 volt lithium battery pack are light, compact, efficient and can be used for all types of uses and applications. BSLBATT® are designed to drop-in replacement of old generation batteries (Lead VRLA, AGM or OPZ batteries) in 12V, that are low performance and harmful to the environment (use of heavy metals and acid electrolytes).

12V 300Ah lithiumbattery


● Drop-in replacement for lead acid batteries – and more bang for your buck

● Maintenance-free, modular, and lightweight

● Holds a charge for up to 1 year without a load, and no need for a trickle charger – great for unattended storage

● Longer life compare to lead acid battery

● Up to 60% weight saving

● 100% usable capacity

● More energy with 1/3 smaller size

● Less than 3% self discharging

● Built in safety protection

● Zero maintenance

● Easy installation

● Eco-friendly

● Quality guaranteed

● Protections: high/low voltage; short circuit; high/low temperature

● Designed and assembled in Shenzhen, China

● 5 Year Warranty

12v lifepo4 battery pack 1


Items Parameter
Battery Type 12v 300ah Lithium Battery (LiFePO4)
Nominal Voltage 12.8V
Nominal Capacity 300Ah
Energy 3840 WH
Dimensions (L x W x H) 532*207*215MM
Weight 25KG
Case Material ABS/Iron case
Certifications CE/ISO/UN38.3/MSDS
Efficiency 99%
Self Discharge <1% per Month
Series & Parallel Application max. 4 series or 4 parallel connected application
Peak Discharge Current 200 A
Continus Discharge Current 100 A
Operation Temperature Range -20~60℃
Voltage at end of Discharge 12.8 V
Working Voltage 10-14.4V
Discharge Temperature -4 to 140 ºF (-20 to 60 ºC)
Charge Temperature 32 to 113 ºF (0 to 45 ºC)
Storage Temperature 23 to 95 ºF (-5 to 35 ºC)
Cycle Life > 3500 cycles
Self-Discharge Rate Residual capacity: ≤3%/month; ≤15%/years
Reversible capacity: ≤1.5%/month; ≤8%/years
Storage Temperature & Humidity Range Less than 1 month: -20℃~35℃, 45%RH~75%RH
Less than 3 months: -10℃~35℃, 45%RH~75%RH
Recommended storage environment: 15℃~35℃,45%RH~75%RH

lithium battery 12v

■ Product List

Models Voltage(V) Nominal Capacity(AH) Max.charge current(A) Weight(kg)+/-5% Dimension(+/-3mm) Cycle life DOD 100%
L(mm) W(mm) H(mm)
B-LFP12-40 12 40 20 6 195 130 168 >2000
B-LFP12-50 12 50 30 7 229 138 213 >2000
B-LFP12-80 12 80 30 12.8 262 167 212 >2000
B-LFP12-100 12 100 50 14 323 173 218 >2000
B-LFP12-120 12 120 60 16 323 173 218 >2000
B-LFP12-150 12 150 75 24 485 172 240 >2000
B-LFP12-170 12 170 85 26 485 172 240 >2000
B-LFP12-200 12 200 100 30 520 269 205 >2000
B-LFP12-240 12 240 120 34.2 520 269 208 >2000
B-LFP24-50 24 50 25 14.8 520 380 290 >2000
B-LFP24-100 24 100 50 28 520 450 350 >2000
B-LFP24-150 24 150 50 42 520 450 400 >2000
B-LFP24-200 24 200 50 56 520 380 290 >2000
B-LFP24-250 24 250 50 70 600 450 350 >2000
Because the model is numerous, only displays the part, may contact us to understand more!

Battery Management System:

The lithium batteries are supplied with Battery Management System that can monitor and optimize each single cell during charge and discharge, to protect the battery pack from damage agains over-charge, over-discharge, short circuit. The BMS helps to ensure safe and accurate running.

Items Content Specification
Over Charge Over-charge protection for each cell 3.8±0.03V
Over-charge release for each cell 3.60±0.05V
Over-charge release method Under the release voltage
Over Discharge Over-discharge protection for each cell 2.3±0.05V
Over-discharge release for each cell 2.8±0.05V
Over-discharge release method Charge to recovery
Over Current Over discharge current protection 300A~500A
Protection delay time 50ms~200ms
Over current release method Delay about 8S after recovery
Short Circuit Do not short-circuit the electrodes Designed for 600A/500us
Battery Temperature Charge over temperature Protection @ 65±5℃
Release @ 50±5℃
Discharge over temperature Protection @ 65±5℃
Release @ 50±5℃
MOSFET over temperature Protection @ 103±10℃
Release @ 75±10℃


12v 300Ah lithium iron phosphate battery lelsure. are widely used in various industries and fields. Some common applications include:

– Renewable energy storage: The battery is ideally suited for solar power systems, wind turbines and other renewable energy applications, providing reliable energy storage.

– Electric vehicles: Lithium iron phosphate batteries are commonly used in electric vehicles, motorcycles, scooters and other electric vehicles due to their high energy density and long cycle life.

– Boats and RVs: This battery’s ability to withstand harsh boating and recreational vehicle (RV) environments, coupled with its deep-cycling capabilities, makes it ideal for powering boats, yachts, and RVs.

– UPS and backup power systems: 12v 300Ah lithium iron phosphate battery acts as a reliable backup power source for uninterruptible power supplies (UPS) and backup power systems during power outages.

– Telecommunications and Off-Grid Power: The battery can be used to power telecommunications towers, remote monitoring systems and off-grid power systems, ensuring continuous operation at remote locations.

Mining Lift Trucks Remote Power
UPS Military Utility batteries
Solar Industrial Telecom
Marine RV


BSLBATT® batteries are based on Lithium iron battery technology (LiFePO4). This is the safest Lithium technology available today. On top of that our bespoke casing and electronics further increase safety and durability. 

Primary Competitive Advantages:

Origin Guarantee/Warranty Price Product Features Product Performance Prompt Delivery Quality Approvals Reputation Service Small Orders Accepted


BSLBATT caring every detail of the lithium battery pack to assure you get the safest and durable lelsure battery using experience:

Main Export Markets:

Asia/Australasia Central/South America/Eastern Europe/Mid East/Africa North America/Western Europe

Whether you are ready to order or just want a price quote we will do our best to assist you. Please fill in the form below with your contact info, or send your inquiry to [email protected], we will get back to you as soon as possible.

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    12V 300Ah lithium batteries specification

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