Jozoking (Tianjin)-top global battery manufacturer.

1.Slow Engine Crank: The most classic symptom.
2.Dim Lights and Electrical Issues.
3.Dashboard Warning Light.
4.Needing Frequent Jump Starts.
5.Swollen or Bloated Battery Case.
6.Old Age: Most car batteries last 3-5 years.
7.Rotten Egg Smell (Sulfur Odor): A leaking battery can emit a distinct smell of rotten eggs (sulfur). This indicates the battery is damaged, overheating, and venting gas. Inspect it carefully.
8.Corroded Terminals: Significant white, ashy, or blue-green buildup on the metal battery terminals can prevent a good connection and cause starting problems, though cleaning might sometimes help.
If you notice one or more of these signs, especially a slow crank or warning light, it's advisable to have your battery tested professionally (for free at most auto parts stores) as soon as possible. A failing battery can leave you stranded without warning.

Be sure to choose the right vehicle battery.
First, you need to select the correct size. After all, car batteries and truck batteries serve different applications.
Second, if you only need to replace a standard battery, dry-charged batteries or maintenance-free batteries are both excellent choices. If your vehicle has a start-stop system, you should carefully choose between EFB or AGM batteries. These are not interchangeable alternatives; AGM batteries offer greater functionality than EFB batteries.
Third, I believe TOKUSHIMA batteries are an outstanding brand for automotive batteries.

Vehicle starter batteries are categorised into traditional lead-acid batteries and modern lithium batteries. However, lithium batteries are prohibitively expensive and are reserved for high-end vehicles. Therefore, we shall focus solely on lead-acid batteries.
Taking TOKUSHIMA batteries as an example:
Plastic casing and cover plate: Constructed from durable, acid-resistant polypropylene material, it houses all internal components and shields them from environmental factors.
Lead plates (positive and negative electrodes):
Positive plate: Coated with lead dioxide (PbO₂).
Negative plate: Constructed from spongy lead (Pb).
These plates are alternately stacked with insulating separators to form individual battery cells. A greater number of plates typically indicates higher power output (cold cranking current).

1. During start-up, the engine turns slowly and weakly, emitting a ‘clunking’ sound, or requires multiple attempts to ignite.
2. At idle, headlights noticeably dim; window operation and central control screen response slows; electrical usage after engine shutdown drains battery power extremely rapidly.
3. The red battery-shaped warning light on the instrument panel frequently illuminates whilst driving.
4. The battery casing is bulging or deformed, or white/blue-green powdery crystalline deposits appear around the terminals.
5. The vehicle has experienced multiple instances of complete battery depletion (discharging) due to forgotten lights, requiring jump-starting.

There is no fixed schedule for replacing batteries; the decision should be based on symptoms and testing.
Observing symptoms: You may recall the clear indicators we previously discussed, such as “difficulty starting, dim headlights, and a bulging battery”.
Professional testing: The most reliable approach is to use a professional battery tester for regular checks (e.g., annually) or when suspicious symptoms arise. Should the test indicate a significant decline in battery health or insufficient cold-start current, replacement is necessary.

Automotive batteries can fluctuate by years, especially when you factor in your driving habits.
Numerous factors influence the lifespan of automotive batteries.
For instance: poor battery sealing leads to accelerated electrolyte evaporation, thereby reducing the battery's operational life.
Excessively low ambient temperatures cause electrolyte molecules to cease movement almost entirely, preventing electrical power from being transmitted from the battery to the vehicle's electrical system. This consequently shortens the battery's lifespan.
Certain brands employing low-purity lead plates also significantly diminish the battery's operational longevity.

It is possible, but success depends on the battery's condition and the vehicle type. For most conventional petrol or diesel vehicles, jump-starting a completely flat battery is a viable emergency measure, provided it is carried out correctly and understood to be only a temporary solution.

The key point is this: jump-starting uses the charge from the rescue vehicle's battery to get the engine running, after which the vehicle's own alternator recharges the battery. However, if the battery itself is physically damaged or severely degraded, the procedure may not succeed.

For the vast majority of conventional petrol or diesel vehicles, replacing the battery yourself is entirely feasible. This relatively straightforward piece of car maintenance can save you labour costs. However, if your vehicle is a newer model equipped with an automatic start-stop system, the procedure becomes somewhat more complex. Vehicles equipped with this feature typically utilise specialised batteries such as AGM or EFB types. Following replacement, it may be necessary to register the new battery's information into the vehicle's Battery Management System (BMS) using dedicated equipment. Failure to do so could result in system malfunctions or reduced battery lifespan.

Rapid depletion of car batteries (abnormal ageing) is almost invariably caused by issues with the vehicle or usage habits, rather than the battery itself. This is unless your battery utilises low-purity lead plates or refurbished lead plates.
The following factors may cause rapid battery depletion:
1. Failing to switch off electronic devices after turning off the engine. This could drain your battery overnight.
2. Frequent short journeys. As car batteries rely on charging from the alternator during driving, frequent short trips result in prolonged battery discharge.
3. Sustained high temperatures accelerate the ageing of internal battery chemicals and water evaporation; extreme cold significantly reduces the battery's usable capacity, potentially leaving it unable to start the vehicle even when fully charged.

1. Not wearing protective equipment X
2. Disconnecting the positive terminal (+) first X
3. Allowing accidental contact between terminals X
4. Disposing of old batteries carelessly X
5. Connecting the negative terminal (-) first during installation X
6. Insecure connections X

The key to selecting a new battery for your vehicle lies in matching the original manufacturer's specifications and making minor adjustments according to your specific circumstances. TOKUSHIMA brand batteries comes from Japan, warranty from one year to three years, So TOKUSHIMA brand batteries' lifespan can last from 3 years to 10 years

First of all, let me tell you about the market position of JOZOKING and TOKUSHIMA batteries. JOZOKING has 30 years of experience in the new energy industry. Our batteries have sold more than 60 countries all of the world.
Second, JOZOKING group has three major production bases in China, more than 10 subsidiaries worldwide, 80+GWh lead-acid battery production capacity, 20+GWh lithium battery production capacity, battery disposal capacity and continues to grow every year.
Third, annual R & D revenue accounts for 3%, R & D personnel account for 20%, cooperation with world-class universities and industry associations, there are 13 national key products, at present, JOZOING group have reached cooperation and supporting with SINOTRUK, Jianghuai Automobile, FAW jiefang, Wuzheng Group Lingong Mingyu heavy industry and other enterprises. For related core technologies, you can browse the official website, where there is a technical introduction.

80+GWh lead-acid battery production capacity, 20+GWh lithium battery production capacity, 1 million tons of lead-acid battery recycling capacity per year, 110,000 tons of waste lithium battery disposal capacity and continues to grow every year.

JOZOKING's main business is mainly electric vehicle power battery business, battery products include: electric special vehicle power battery, new energy vehicle power battery, vehicle start-stop battery, energy storage battery, backup battery and other types of batteries. JOZOKING Group is an international battery industry leader integrating R & D, production and sales.
In addition, JOZOKING Group provides one-stop system energy storage solutions and is a powerful energy storage solution provider. JOZOKING group's solutions include: portable energy storage solutions, user energy storage solutions, industrial and commercial energy storage system solutions, smart microgrid energy storage solutions and so on.

All products of JOZOKING and TOKUSHIMA have been certified by laws and regulations. JOZOKING group all of products have passed authoritative quality inspection, and consumers and agents can be trusted. In addition,and we can offer different WARRANTY policy to our customer's request.JOZOKING group has a very perfect after-sales team to ensure after-sales service.

JOZOKING group attaches great importance to product pollution to the environment, promotes green development, and promotes the harmonious development of man and nature, which is the core concept of the company's development. JOZOKING group Battery insists on the concepts of green, low-carbon and circular development from product design to manufacturing, from application to regeneration to refresh industrial structure, production methods and product circulation.
Lithium-ion battery recycling has been a world problem since the lithium-ion battery became more and more popular. JOZOKING group Battery settle down the lithium-ion battery recycling system in 2019.

Sample needs 3 to 5 days, mass production time needs about one month, it depends on order quantity.

Firstly let us know your requirements or application. Secondly, We quote according to your requirements or our suggestions.Thirdly customer confirms the samples and places a deposit for formal order. Fourthly We arrange the production.

Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

Deep-cycle batteries are used when 50% or more of the capacity is used per cycle. The most common use of deep-cycle batteries is in applications that require deep, repetitive drain, like powerful car audio systems, trolling motors, golf carts, electric wheelchairs, or RV house power sources. Public safety and high performance vehicles are other applications that call for the special characteristics of deep-cycle batteries.