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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: Koyosonic, Toyoma or OEM
  • Model Number: NPG200-12
  • Usage: Marine, Vehicles, UPS, machines
  • Voltage: 12v
  • Sealed Type: Sealed
  • Maintenance Type: Free
  • Size: 522*240*219*244
  • Weight: 59.5KG
  • Nominal Capacity: 200AH
  • Application: Marine/Boats/Navigational Aids
  • Other Applications: Vehicles
  • Technology Applied: Sealed, MF, VRLA, GEL

Packaging & Delivery

Packaging Details Packaged by Carton Box, then onto pallet.
Around 26 tons batteries can be loaded in a 20' Container.
Delivery Time In 25 days after getting deposit
Product Description

NPG series description

GEL batteries offer reliable cold cranking(starting power) and maximum power supply with a superior cycling performance. The robust construction ensures the battery will contrinue to work through the most extreme conditions with a high resistance to vibration. They are exceptionally clean and safe to handle. The battery acid is fixed using gel, making the Gel Battery completely leakproof, permitting the battery to be inclined to an angle of 180 degrees. Gel batteries incorporate gas recombination technology, ensuring neither gas nor acid vapours are able to escape, making Gel completely maintenance free. A slow self discharge rate, plus its capability of recovery after deep discharge, makes a Gel battery ideally suited for  seasonal or infrequent use. 

NPG series Applications

Golf Cart

•Floor Cleaning Machines
Wheelchair or Electric vehicles
•Refrigerated vehicles

•Construction machinery

•Marine/Boats/Navigational Aids (sailing boats, motorized yachts, motor boats, etc) 

Leisure vehicles (caravans, mobile homes, etc)
•Engine starting

Technical Features and Benefits

♦Sealed Battery system with recombination
Absolutely maintenance free

Clean & environmentally friendly

No release of acid vapours

Extremely low gassing

Safe application in closed compartments
♦Lead/Calcium alloy on positive and negative plates
Constant cold cranking performance over the entire service life

Minimal self discharge idea for seasonal applications
♦Thick Plates with mechanically reinforced positive mass
Extremely high cycling capability

Long service life with frequent charge and discharge
♦Acid fixed in Gel
100% Leak proof

Permitted angle of inclination up to 180 degrees

Deep discharge proffed

Deep discharged batteries can be recharged within 4 weeks

No stratification

Suitable for mobility applications
♦Rebust construction
High vibration resistance
♦Combining Gel Technology with AGM Technology
Provides superior cycle life

Excellent performance under high rate discharge (windlass, bow thrusters)

Offers a wide range of acceptable charge parameters

Full partilcle tank formation to enable batteries to deliver full capacity from the first cycle

Wide range of acceptable charge parameters

Acid gelled with fumed silica (A200) made in Japan

Superior price advantage

♦Advantage over standard AGM batteries

Low electrolyte density and corrosion reduction

Electrolyte quantity close to flooded battery, thus extending the float service life

High charging acceptance, increases its cyclic number

Reduces stratification to a minimum

Aviods thermal runaway

Battery Construction

The Construction of a VRLA battery (all the batteries from our company belong to VRLA battery) is shown above. The following is the description of the different parts consisting of our batteries.

1. Plates (Electrodes)

Plate construction is the Key to produce a good battery. Recognizing this, Koyosonic utilizes the latest technology and equipment to cast grids from a lead-calcium alloy free of antimony. The small amount of calcium and tin in the grid alloy imparts strength to the plate and guarantees durability even in extensive cycle service. Lead oxide paste is added to the grid to form the electrically electrically active material. In the charged state, the negative plate paste is pure lead and that of the Positive lead oxide. Both of these are in a porous or spongy form to optimize surface area and thereby maximize capacity.

2. Separators

The separator is made of woven glass fiber cloth with high heat and oxidation resistance. The material further offers superior electrolyte absorption and retaining ability, as well as excellent ion conductivity.

3. Electrolyte

Immobilized dilute sulfuric acid: H2SO4

4. Container

Case material is a ABS, a high-impact proof plastic resin, Styrene, or a polypropylene-polyethylene polymer with resistance to chemicals and flammability. For 2V, 4V, 6V, 8V and 12V batteries, standard container is manufactured from ABS plastic resin (UL94HB). It is optional to use Flame Retardant ABS plastic resin (UL94V0). Each cell has 2v in voltage and 4v battery has 2 cells. 6v battery has 3 cells, 8v battery has 4 cells and 12V battery has 6 cells. 

5. Terminals
Depending on the battery model, the terminals may be Fastern type, bolt-and-nut type, pressure-contact type, cable-and-connector type or other special types. Some are threaded-insertion type or bolt-and-nut type.
6. Relief Valve
In case of excessive gas pressure build-up inside the battery (usually caused by abnormal charging) the relief valve will open and relieve the pressure. The one-way valve ont only ensures that no air gets into the battery where the oxygen would react with the plates causing internal discharge, but also represents an important safety device in the event of excessive overcharge. Vent release pressure is between 2-6 PSI and the seal ring material is neoprene rubber.
7. Case sealing
The case sealing is tongue and groove with polyrethane, epoxy, or heat seal. The ABS plastic cover and container are sealed by a special epoxy made in Japan and is acid resistant. 

Production Process

Packing & Delivery
Carton Box applied until customer have special requirements
By Sea
Delivery from Guangzhou or Shenzhen Port
By Air
Departure from Guangzhou Airport
Our Company

Company Profile

Koyosonic, a member of MCA Battery Group Co., Ltd, established in 2003, has been specialized in producing Lead-acid batteries, Li-ion batteries and related products. Solar Energy system is also one of our main service recently. As one of professional manufacturers in lead acid batteries, we have been devoted to research and development, manufacture and market to lead the users to have right batteries for their power system.

Factory and Office Pictures


Q1:What's the MOQ?
The Minimum order quantity is 100 pieces for each model.
Q2: How about the payment?
A: Payment term is by T/T (30% deposit with order and 70% balance before shipment).
Q3: Can we change the color based on the original?
A:Yes, the color can be customer-made according to your requirement.
Q4:What are kinds of battery will you provide?
A:We can provide you VRLA batteries and Stating batteries.Vrla batteries include general batteries,High-rate batteries,deep-cycle batteries,long-life batteries,front-terminal batteries,gel batteries,solar batteries.Stating batteries include Maintenance free batteries and dry charge batteries.
Q5:Can you print my logo on the battery cover?
A: Yes, OEM is available, you can offer your logo as you like.
Q6: Operating temperature
A: Discharge: -15--40C
Charge: 0--40C

Q7:How to maintain the battery?
A:The battery should be stored in clean, dry, ventilated, dark environment when not using, keep it after full charge, recharge it every 3 months or 6 months.
Q8: How about the shippment?
A: The goods will be exported by GUANGZHOU PORT or SHENZHEN PORT. And delivery time is in 20 days after getting deposit for your order.
Q9: If there are defective batteries in the warranty, what's your policy to replace them?
Please take the photos of the broken batteries for us and tell us what happen, if everything is confirmed, the new ones will be sent to you as compensation in the next order.

Our Service:
S1: Payment Terms
T/T, L/C are the payment methods we accept at present.
S2: Shipping
Material in stock can be produced 20days right away after pre-payment confirmation.
Delivery time is in 25 days after getting deposit. And the transportation time from China to Dubai is about 30 days arounf for LCL shipment.

S3: Important Information
1. All our Battery following Internation standard, Have ISO14001 ,ISO09001 .CE, TUV,UL Certifications.
2. All Payment must be Koyosonic company account .

S4: Feedback
1. Customer satisfaction is completely guaranteed. If for any reason you are unsatisfied with your order, please contact us first before you leave the feedback.
2. We will do our best to take care of you and if you have any questions please do not hesitate and feel free to contact us.

Contacts Details

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