Guangdong, China
Business Type:
Manufacturer/Factory & Trading Company
Year of Establishment:
Management System Certification:
ISO14001:2004, OHSAS18001:2007
Main Markets:
North America, Europe, Australia
International Commercial Terms(Incoterms):
OEM/ODM Service
Sample Available
MEI Awards
Spanish Speaker

LiFePO4 Battery, 12V Battery, Battery manufacturer / supplier in China, offering Rechargeable Li-ion 12V 300ah Battery, 40FT Long Range Battery Dricve Electric Bus From Opitmumnano China, Deep Cycle 9.6V 10ah Lithium Battery for LED Light and so on.

Gold Member Since 2009
Audited Supplier
  • Rechargeable Li-ion 12V 300ah Battery
  • Rechargeable Li-ion 12V 300ah Battery
  • Rechargeable Li-ion 12V 300ah Battery
  • Rechargeable Li-ion 12V 300ah Battery
  • Rechargeable Li-ion 12V 300ah Battery
  • Rechargeable Li-ion 12V 300ah Battery

Rechargeable Li-ion 12V 300ah Battery

Get Latest Price
Purchase Qty. / Reference FOB Price
10-999 Pieces US $999
1,000+ Pieces US $658
Port: Shenzhen, China
Production Capacity: 1000pks/Day
Payment Terms: T/T
Type: Lithium-Ion Battery Pack
Connection Mode: 4s60p
Rechargeable: Chargeable
Discharge Rate: High Discharge Rate
Size: Small
Accessories Type: Chargers

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Basic Info

Model NO.: OPT-12300
Rated Capacity: 300ah
Standard Voltage: 12V
Usage: Solar System, UPS
Electrolyte: Lithum Iron Phoshate
Usage Capacity: 300ah
Work Voltage: 12V
Standard Charge Current: 60A
Max. Discahrge Current: 100A
Fast Charging Time: 3 Hours
Color: Black
Casing Material: Plastic Case
BMS Iternel: Yes
Dimension: Customized
Cycle Life: >2000 Times
Transport Package: Customized Package
Specification: CE, UL, RoHS, SGS, TS/16949 and ISO9001-2008
Origin: Shenzhen China
HS Code: 8507600090

Product Description

rechargeable Li-ion 12V 300Ah battery 

Quick Details
Place of Origin: Guangdong China (Mainland)
Brand Name: Optimum
Battery Model Number: OPT-12300
Type: Lthium battery
Nominal Voltage: 12V
Size: Customized
Nominal Capacity: 300Ah
Weight: 42KG
Warranty: 2 years
Service: OEM/ODM
Delivery time: 15-25 days after order confirmed
Certification: CE, UL, RoHS
Component: Lthium battery
Market: America, Europe, Asia
Combination: 4S60P
Case: Plastic Case

Packaging & Delivery
Packaging Detail: Plastic case, carton, wooden carton
Delivery Detail: 2-3 weeks after order confirmed

Lithium battery
1.10% longer life than SLA
2.70% lighter than SLA
3. PCM protect the lithium battery
4. CE, UL, BV/SGS, UN38.3, ISO9001: 2008, TS16949: 2002 issued by NQA

Optimum Lithium Battery are designed to replace the outdated Lead Acid Gel and AGM batteries

Main Features:

1. Safe: The safest lithium battery so far, with CE, UL approved.
2. Environmental-friendly: All of our lithium battery approved RoHS.
3. Powerful: Able to discharge with 20C.
4. Long cycle life: Lithium battery have over 2000 cycles with capacity staying at 80% min.
5. No memory effect: The lithium battery are always ready for charge and use.
6. Wide temperature range: -4F~158F


1. Specialized in production of lithium battery for over 9 years.

2. Providing tailor-made high standard lithium battery energy solutions in accordance to client's demands.

3. With technical experience of over two years in on-site installation and debugging for more than 1000 HEV and EV.

4. Having made and implemented lithium battery energy solutions for over 100 styles of EV.

5. Whole journey nanny service after lithium battery saled.


1. Optimum Power Lithium Battery:
Mainly used for solar energy, solar lights, lawn lights, telecom base, large EV, light EV, boats, planes, small medical instruments as well as portable apparatures.

2. Optimum Energy-storage Lithium Battery:
For PV/Wind power generation, peak-load adjustment, power station distribution, communication base station, UPS, military, etc.

Our service:

1. Your inquiry related to our lithium battery or prices will be replied in 24hrs

2. Well-trained and experienced staffs to answer all your enquires in fluent English

3. OEM&ODM, any your customized lithium battery we can help you to design and put into product

4. Distributoership are offered for your unique design and some our current models

5. Protection of your sales area, ideas of design and all your private information

Trade terms

1. Payment: T/T 100% in advance for sample; T/T 30% in advance for order
2. Lithium Battery lead time: 15-25 days after order confirmed
3. Shipping freight are quoted under your requests
4. Shipping port: Shenzhen, Mainland China
5. Discounts are offered based on order quantities
6. MOQ: 1 pcs lithium battery are accepted.

Why do you choose us?

Quick response to clients' enquiries within 24hrs.
Tailor-made solution provided by our experienced team and professional engineers.
More than 12 years experience in producing battery products for various application.
Value quality and long-term cooperation to reach win-win relationship.

Sincerely hope we can provide you with our best service, Welcome you to visit and negotiate in our factory!
Battery Model12V 300Ah
Nominal Capacity (AH)300Ah
Nominal Voltage (V)12V
Cell Combination4S60P
Cell Type3.2V 5000mAh
Cell Quantity (series*parallels)240pcs
Max. Continuous  Discharge Current 100A
Max. Continuous Charge Current 100A
Charge ModeCC-CV
Standard Charge Current 60A
Charge Time under 
Standard Charge Current
5 hours
Charge Time under Fast Charge Currentabout 3 hours
Charge Temperature Range0-45°C
Discharge Temperature Range-20-65°C
Storage Temperature-20-45ºC
Charging and discharging Cycles>2000 times
(wthin 1C constant charge 
and discharge rate)
EquipmentBMS + Charger(if you need) 
+ Outer Case
Rechargeable Li-ion 12V 300ah Battery
Rechargeable Li-ion 12V 300ah Battery

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