High Quality 12v 300ah Lithium Battery, 300ah Ups Battery, 12v Lithium Ups Solar Battery 300ah Suppliers in China

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Polinovel Lifepo4 Marine RV Energy Storage Solar UPS 12v 300ah Lithium Battery

Product Description

Battery" class="magic-0">Polinovel AF Battery

Thanks for your time and interested in our lifepo4 Lithium Battery. Here below are the hot selling models of our HD series LiFePO4 Batteries in your market. They are designed for replacement of conventional battery in energy storage applications, including the power supply on camper van, motorhome, RV, trailer, yacht, boat, etc., as well as solar systems and street lighting systems. If you are looking for some new batteries for distribution, please check below and contact us for any more information you would want.

Product Description
Nominal Voltage
Nominal Capacity
Energy Storage
Recommend Charge Voltage
Discharge Cut-off Voltage
Charge Current Range
1 to 100A
Max Continuous Discharge Current
200A @ 3 min
5Peak Discharge Current  
500A @ 3 s
Polinovel battery for replacement of lead acid counterpart is a high safety, affordable and effective option for those that want to power a small to medium trolling motor, marine boat, rv, leisure caravan, solar storage. The range covers lifepo4 batteries from 12v to 36v, 50ah to 300ah and each battery incorporates the durable BMS which protect against over-voltage, under-voltage, over-current, short-circuit and over-temperature, safeguarding the battery if abused. Features “nickel copper plate + built-in fuse pcb+screw fasten” internal structure technology for increased shock and vibration resistance and reduced self-discharge. For those that want a high safe battery, Polinovel battery is a top-quality option that promises reliable power out for the equipment. It can be installed at any angle and requires zero maintenance. The parameter choice of battery is depending on the size of your the power and the length of using time of total loading. Choose one of our battery below or customize it to meet your application device’s specific power needs.
Clients & Polinovel

Long term win-win cooperation

Long term win-win cooperation

Long term win-win cooperation

Long term win-win cooperation

Polinovel Culture

Happy Working, Happy Team !

Outstanding colleagues !

Production & Test

HOW IS QUALITY & PRODUCTION GUARANTEED ? Check out our advanced production facilities and testing facilities .

Polinovel provide both battery cells and battery packs, with the most advance production technology and the highest quality components, to make our lithium batteries unlike Others in the market. Polinovel strictly follow the high-standard production and testing processes, to guarantee lithium batteries are qualified and safe for use in different applications.

Analog Car Vibration Test of Lithium Battery

Analog the damage caused by bumps in the transportation process, to make sure the resistance of lithium battery for environmental vibrations.

Analog Lithium Battery encountered different road conditions such as bumps, uphills, downhills, turns, sharp turn, etc. Polinovel Lithium Battery is suited to all the above road conditions, not only with stable performance, but also safe and secure.

Waterproof test on lithium battery

Polinovel high technology lithium batteries are widely used in marine, like the Yachts, Fishing Boats, Sailing boats, Kayak, Catamaran, etc.   People may concern if the batteries are safe enough to operate on my vehicles. Below is a waterproof testing of lithium battery for reference:

Put the batteries in the sink, fill with water and put some fish in.  

Multimeter measuring battery voltage and current, battery work normally, and fish is alive, No electric leakage. Polinovel high technology including special processing on lithium battery production crafts to meet the requirements of IP standard in different installation and operating environment. If you want waterproof lithium battery, we are very pleasure to provide you, please let us know your requirements.


We strive to produce and provide the safest lithium battery to customers. Our lithium battery have been rigorously tested and certified to be safely used in wide applications around the world.

Recently, all lithium batteries are required to pass UN38.3 for shipment. We are proud of our batteries are conform to UN38.3 shipping regulations that are safe for air or sea shipping.

Polinovel can also cooperate to help applying for other safety relevant certifications to meet the market demand as per customer's request. Like CE, MSDS, UL, IEC etc.

Certificate Time:
CE -----  2 weeks          MSDS ----- 1 weeks           UN38.3 ----- 4 weeks         UL/IEC ----- 10 weeks

Certificate Cost:
This contains two costs - Sample & Testing.  Both of them are charged basing on exact battery specification. You are welcome to inform us the battery model you are interested for quoting.

Be Your Good Partner


10+ Years  Experience in lithium battery

30+ Countries Experience of export

Polinovel Advantages:

First-class R&D team: Our R&D colleagues are from the TOP3 Lithium battery companies in China. we have rich experience in battery design, electronics, testing and real application. We keep close communication with university and scientific institution. We promise to offer you a professional and high cost-effective solution.

Strict Quality Control: We set strict QC standards include appearance, package, internal structure, electric performance etc. We promise to offer our customers high quality battery.

Customer first culture: 80% of our customers are 5 years above long term partners. We treat our customers as our friends, family members. Every batteries we produced, sold are priceless trust from customers, we cherish it and match word to deed.

Polinovel Target Market:

1. 12 volt Standard Lithium Battery.

2. Golf cart, AGV, forklift, boat, etc.low speed mobility battery.

3. Energy storage field (battery unit capacity: 50kwh below).

Q & A:

Q1.: Does Polinovel support door to door shipping? drop ship ?
A1.: Yes. If battery unit weight is below 30kg, we delivery it via Air Express. If battery unit weight is above 30kg, we delivery it via sea . If you want to us to help you to make custom clearance, we would like to do that. We support drop ship.

Q2.: Can we do series and parallel connection by ourselves (12 volt battery)?
A2.: Yes. But, we should pay attention to below tips:
a.: Connect the same spec. battery pack. Please don't mix them.
b.: The voltage difference of the connection batteries should be 50mV below.
c.: Support 4 series OR 4 parallel connection. Please don't do series and parallel connection at the same time.
d. If we don't obey the tips, It may cause battery damaged or shorten the battery lifespan.

Q3.: How can I resell lithium batteries well in my market ?
A3.: Do market research, set your focus application field,learn more knowledge about lithium battery. build your own brand. We can work together with you to explode the market.

Q4.: Why Polinovel guys ask me so many questions? I just want to know the price !!
A4.: Sorry for annoying you. But the discharge current, voltage etc. Information is very important for us to produce the correct battery for you. If we produce the battery which can not achieve the real application discharge current, size etc. That will put both of us in a very embarrassing and lose-lose condition. We also have price list, but it is only for your reference. We should confirm the discharge current etc. Information before we produce your orders.

Q5.: Does Polinovel battery include BMS? Can we use it for vehicle?
A5.: Yes, our battery pack include BMS, you can use it for low speed vehicles.And make sure the discharge current can meet the application request (please refer to Q4) . If you want to use standard vehicle, please inform us, we need to adopt more complex design BMS and different technology solution.

Q6.: What is your warranty?
A6.: Our standard warranty is 2 years. Our battery lifespan can be used for at least 8 years for normal 1 cycle per day. We have a complete warranty policy documents, please feel free to contact us to get it.
Your inquiries and questions are welcome, we will reply you quickly !

Contact us if you need more details on 12v 300ah Lithium Battery. We are ready to answer your questions on packaging, logistics, certification or any other aspects about 300ah Ups Battery、12v Lithium Ups Solar Battery 300ah. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Standard Lithium Battery > 12V Prismatic Lithium Battery

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