GEMFG 12V Lithium Battery Pack 12.8V 300Ah Rechargeable Li Ion Battery

• Customization: Available
• Type: Li-ion Battery
• Cathode Material: LFP
• Model NO.: GiB 12-300
• Rechargeable: Yes
• Size: Medium
• Designed Life: 20 years
• Application: All types of energy storage
• Color: Customized color available
• Maintenance: Free
• Transport Package: Cartons&Pallets
• Specification: 12V 300Ah
• Trademark: GEMFG
• Origin: Dongguan
• HS Code: 8507
• Production Capacity: 150FCL
• Package Size: 52.30cm * 24.00cm * 21.80cm
• Package Gross Weight: 26.500kg

Product Description

Product Description

GEMFG 12V Lithium Battery Pack 12.8V 300Ah Rechargeable Li Ion Battery 


GiB Series Lithium battery, as critical part of the most popular Energy Storage System (ESS), is widely using in industrial & commercial applications as well as household solar systems. 

 

Super-safe lithium iron phosphate (LiFePO4) chemistry reducing the risk of explosion or combustion from high impact, over-charging or short circuit

Battery Management System (BMS) controls the battery parameters to provide optimum safety, by protecting against over-charge and over-discharge.

Intelligent BMS design balances the battery cells to an optimized performance.

Higher-Capacity or Higher-Voltage available through parallel or serial connections.

Robust ABS case with rugged-impact resistant.

 

Replacement of Lead Acid batteries

GiB 12.8V Lithium batteries are designed for replacement of GEM lead acid batteries GS / GM / GF series.

 

 

Cycle life

GiB Lithium batteries are for customized projects, available with below DOD cycles, subject to the project budget.
DOD80% = 2000 cycles
DOD80% = 3000 cycles
DOD80% = 4000 cycles

 

 

Safety/Fuse Protection.
Under the protection of built-in BMS, every single piece of GiB Lithium battery is extremely safe with current control. The smart BMS would protect your batteries from over-load discharge, over-charge, temperature exceed (low & high safety level).

Equalization of battery initial specification.
We could have equalized specifications of the batteries in series/parallel on OCV, IR, Capacity, Temp, etc...

Warming / heating panel available for low temperature application (-45ºC).
This is quite helpful when batteries are using in extreme temperature conditions, summer hot and winter cold. 

Customized with digital display screen, Bluetooth, GPS, etc... more functional configuration could be developed.
 

Tell us your power requirement, we could design/customize the battery system for you.

Detailed Photos

 

 

GEM Battery GiB Series	Energy (KWH)	Voltage (V)	Capacity (AH)	Dimension (mm)			Max.	Type	Comm.
				L	W	H	Discharge
				±1	±1	±2	Current (A)
GiB 12-7	0.0896	12.8	7	151	65	98	1-3C	LiFePO4	-
GiB 12-8	0.1024	12.8	8	151	65	98	1-3C	LiFePO4
GiB 12-12	0.1536	12.8	12	151	98	98	1-3C	LiFePO4	-
GiB 12-18	0.2304	12.8	18	181	77	170	1-3C	LiFePO4
GiB 12-20	0.256	12.8	20	181	77	170	1-3C	LiFePO4	-
GiB 12-33	0.4224	12.8	33	196	133	161	1-3C	LiFePO4	-
GiB 12-40	0.512	12.8	40	198	166	170	1-3C	LiFePO4	-
GiB 12-50	0.64	12.8	50	229	138	214	1-3C	LiFePO4	-
GiB 12-54	0.6912	12.8	54	229	138	217	BMS 1C	LiFePO4
GiB 12-80	1.024	12.8	80	260	167	213	BMS 1C	LiFePO4
GiB 12-100	1.28	12.8	100	330	173	220	BMS 1C	LiFePO4	-
GiB 12-150	1.92	12.8	150	483	173	240	BMS 1C	LiFePO4	-
GiB 12-150A	1.92	12.8	150	520	240	225	BMS 1C	LiFePO4	-
GiB 12-200A	2.56	12.8	200	520	240	225	BMS 1C	LiFePO4	-
GiB 12-250A	3.2	12.8	250	520	269	220	BMS 1C	LiFePO4	-
GiB 12-280A	3.584	12.8	280	520	240	225	BMS 1C	LiFePO4
GiB 12-314A	4.0192	12.8	314	520	269	225	BMS 1C	LiFePO4	-
GiB 12-412A	5.2736	12.8	412	520	269	225	BMS 1C	LiFePO4	-
GiB 12-412AL	5.2736	12.8	412	640	245	225	BMS 1C	LiFePO4
GiB 12-100FT	1.28	12.8	100	507	110	238	BMS 1C	LiFePO4	-
GiB 12-150FT	1.92	12.8	150	551	110	288	BMS 1C	LiFePO4	-
GiB 12-150FTL	1.92	12.8	150	561	125	316	BMS 1C	LiFePO4	-
GiB 12-180FT	2.304	12.8	180	561	125	316	BMS 1C	LiFePO4	-
GiB 12-200FT	2.56	12.8	200	561	125	316	BMS 1C	LiFePO4	-
GiB 24-100	2.56	25.6	100	520	238	220	BMS 1C	LiFePO4	-
GiB 24-120	3.072	25.6	120	520	269	220	BMS 1C	LiFePO4	-
GiB 24-150	3.84	25.6	150				BMS 1C	LiFePO4	-
GiB 24-200	5.12	25.6	200				BMS 1C	LiFePO4	-

Company Profile

 

Preface

Electric power shall be available for everyone and everywhere, at an affordable and reasonable price. We don't generate the electric power - we do the storage, and dedicated to providing efficient, safe and stable battery power supply to every need.

 

Profile

Building on 21 years of foundational battery manufacturing expertise since 2004, Grand Energy Manufacturing Co Ltd (known as GEMFG) has strategically evolved from lead-acid production into a specialized lithium battery pack innovator. Our journey began with establishing robust lead-acid systems at our Quanzhou facility, cultivating deep insights into power solution reliability. Recognizing the energy transition, we founded GRAND ENERGY TECH (XIAMEN) CO LTD (known as GET)  in 2016 as a dedicated R&D engine to master lithium chemistry, cell integration, and safety architectures. This research excellence paved the way for our 2021 joint venture with Guangdong Tiequan New Energy Technology Co., Ltd., launching purpose-built lithium manufacturing under the GEMFG brand in Dongguan. Today, this 3,500m² ISO-certified hub consolidates our lithium operations, where 50+ engineers transform 21 years of electro-mechanical proficiency into industry-leading battery packs.

Monthly producing 45 MWh (equivalent to 15×40' FCL containers), we implement maturity-proven processes: From cell validation to proprietary BMS calibration, every step integrates ISO 9001/14001/45001, UN38.3, and CE-certified quality protocols. Our packs deliver uncompromising cycle life and safety-not through experimentation, but through hard-won manufacturing discipline refined over two decades. For global partners seeking lithium solutions where reliability transcends specifications, GEMFG stands as your experience-guaranteed source.
 

Products

GEMFG is developing different technology to produce and supply various kinds of lead-acid batteries with extended features for wide-range applications.

 

Technology

• Lithium (LiFePO4) Battery

• Lithium NCM (Nickel Cobalt Manganese) Battery

 

Feature assortment

• Low-voltage Home Solar Power

• High-voltage BESS for Industrial and Commercial sector

• General Purpose

• Standby Power (Float Service)

• Long Life (Standby)

• High-Rate Discharge

• Deep Cycle (Deep and Cyclic Discharge

• High-Low Temperature (-20ºC to 65ºC)

 

Application

• UPS/EPS system

• Solar Power & Wind Power (Renewable Energy Reserve & Supply)

• Industrial power reserve (Industrial battery) BESS

• Motive Power (Electric - (2 wheels) Bike & Scooter, (3 wheels) Tricycle, (4 wheels) Low-speed EV, Wheelchair, Golf Buggy, Patrol car, Floor Sweeper, Lawn mower, Yacht, RV, Boat House, etc...)

• Telecom & Tower power supply

• Emergency lighting & Sound

• Security & Alarm

• Medical power assurance

• Motorcycle engine start battery & Start-Stop car battery

 

Professionals

As a specialized lithium battery pack manufacturer serving diverse applications - Solar | UPS | Telecom | BESS | Motorcycle | High-Voltage Motive Power | E-Bike | Scooter | Forklift | Sweeper and industrial electric vehicles - GEMFG transforms premium lithium-ion cells into high-performance, safety-focused power solutions through advanced system integration. Our "Powered and Powerful" commitment drives a grounded quality ecosystem dedicated to pack-level excellence:
→ Cell Validation: Rigorous incoming checks via automated grading systems and real-world performance profiling ensure consistency in capacity, impedance, and thermal behavior.
→ Module Assembly: Automated laser welding with thermal monitoring guarantees robust electrical connections, while precision vision inspection verifies structural integrity and optimal cell spacing for thermal management.
→ Pack Integration: Proprietary BMS fine-tuned through exhaustive in-house testing delivers precise cell balancing and multi-tier protection against electrical faults.
→ Environmental Protection: All enclosures achieve IP21+ ratings validated through physical seal testing.
Leveraging proven automation (cell sorters, laser welders, aging equipment), we ensure manufacturing repeatability. Safety is proven through hands-on abuse testing: Vibration rigs simulate years of operational stress • Mechanical crush trials validate structural resilience • Controlled thermal propagation assessments confirm containment efficacy. Every batch undergoes real-world performance mapping - from sub-zero cold starts to high-temperature fast-charging - with full component traceability.
This practical approach delivers optimized energy density, extended cycle life, and failsafe operation across all applications, establishing GEMFG as your trusted partner where real-world reliability outweighs theoretical benchmarks.

 

Power Solution

Drawing on extensive collaboration with diverse clients, GEMFG leverages decade-honed expertise to engineer optimal lithium battery pack solutions for any application-from rechargeable applications, energy storage to industrial electric vehicle. As a specialized pack integrator, we meticulously select premium third-party cells and components, then apply proven system integration methodologies to tailor performance to exact requirements. Our engineering team conducts rigorous configuration analysis, optimizing BMS programming and structural design to ensure each pack delivers targeted energy density, cycle life, and safety margins. Whether for consumer devices, critical backup systems, or extreme-environment applications, we transform validated raw materials into purpose-built power solutions where precise voltage regulation, thermal stability, and real-world reliability define every pack we assemble.

Certifications

5 MAIN REASONS TO CHOOSE GEMFG

1. Top-quality batteries designed based on China quality standards, offering superior performance, high durability and excellent cycle life.

2. Extensive range of sizes of lithium iron phosphate lithium batteries, with an option of a customized battery pack and energy solutions.

3. Efficient production using state of the art manufacturing equipment, allowing our batteries to be delivered for your project on time.

4. Excellent customer service from enquiry to delivery with outstanding after-sale support and the best replacement warranty on batteries.

5. GEMFG is a socially responsible battery company with green initiatives of battery recycling and footprints of community support in China and around the world.