Car Batteries

Our high quality and competitive priced car batteries that are made in Turkey , Gebze by Esan battery are ready to export to any country in the world !



Esan Battery was established in 1978 in Istanbul and started the production of batteries under the title Esan Battery and Materials Industry & Trade Inc. For many years, the company continued manufacturing operations in 4. Levent, as a requirement of increasing business volume and growing need of organizational structure in 1999 a new production facility was built in Ayazaga. Esan Battery continues operations with its growing sales network and organization with more than 200 dealers and after sale service points in Turkey and has 65% of export rate including more than 60 countries in 4 continents. As Esan Battery, we moved all of our management and operation teams and production lines to our hi-tech facilities located in Gebze in 2016 and we are carrying on our activities with 42 years of industrial experience in domestic and over-seas markets and with the acception of costumer satisfaction and environmental awareness as a principle. Esan Battery has been implementing and maintaining a management system that is certified to fulfill the requirements of ISO 9001 Quality Management System and additionally certified for ISO 140001 Environmental Management System and OHSAS 180001 Occupational Health and Safety Assesment Series.Esan Battery officially registered as R&D Center by the Ministry of Industry and Technology in 2018 and continues to work on IATF 16949:2016 Automotive Quality Management Certification and ISO 10002 Customer Satisfaction Certification. We have the roadmap for Industy 4.0, smart production systems, production robots and automatic control systems, monitoring systems, hi-tech charging units, special design machines and a lot more… Now we are the pioneer in technology of battery industry in Turkey. As it continues to activities with the motto “Positive Energy”, Esan Battery will maintain his pioneering role with it’s visionary investments and qualified work force in future.
•ISO 10002 Certificate
•BS OHSAS 18001 Certificate
•ISO 14001 Certificate
•ISO 9001 Certificate
•TSE Covid-19 Safe Production Certificate
Export Sales
Esan Battery Foreign Trade
Exporting 65% of its annual production, Esan Battery obtains the majority of its machinery and raw material required for production from overseas.
Offering its products only to the local market during its first years, after the technological investments it performed during the last 10 years, it has increased its production capacity and begun to provide products at international standards. Following significant steps taken during recent years, it has gained its place among important actors in the European, South American and African markets, following the Middle East and Caucasia, which have been leading regions in export for many years.
Esen Battery is increasing its brand awareness every year, by continuing to participate in the most prestigious fairs of the automotive industry in Europe, Asia and Africa.
Esan Battery aims to grow even further together with its existing and new partners, in its active markets, without compromising on product and service quality.
Warranty Conditions
A) Failures Not Covered by Warranty:
1. Sulphation (Hardening):
-When it is loaded, the voltage of the battery is read around 6-8 Volts.
-The electrolyte density of the battery is low and equal in all eyes.
-Battery plates have turned white due to sulphation.
2.Over Charge (Burnout)
: -The voltage of the battery is greater than 1,280 (eg 1.300 gr/cm3).
The electrolyte is cloudy and contains brown particles.
-Black on the plugs, shrinkage on the outer label of the battery.
-When it is loaded with a voltmeter with a clamp, 6-7 Volts or less is read from the display.
-There is fragmentation in the battery box/cover.
4.Box Broken:
-There is a shock or breakage in the battery.
5. Battery Terminal:
- Intervention on battery terminals (Re-pouring)
6. Battery Discharges:
-The electrolyte value in all eyes of the battery is low and the same.
-Battery voltage is between 11.50-12.20 V.
-In the batteries with indicator, the eye becomes black.
B) Faults Covered by Warranty:
1.Short Circuit:
- When it is loaded, the defective (low density) eye boils.
- When the electrolyte densities are measured, the density of the defective eye is significantly lower than the other eyes.
-When the battery is connected to the rectifier and the current is given, the defective eye does not boil, the other eyes boil.
2.Grift Disconnected:
-When it is loaded, the voltage of the battery becomes 0 (zero).
- Battery electrolyte density is 1,280 gr/cm3.
-When the battery is connected to the rectifier, the battery does not receive current.
3. Reverse Eye:
Electrolyte concentration is normal in all eyes.
-The voltage value of the battery is around 8 Volts.
-When loaded, the voltage of the battery is around 7 Volts.
- Electrolyte-induced wear is seen around the battery.
- Electrolyte leakage is detected when the battery is tilted.
5. Between Eyes:
-The densities of the two eyes of the battery next to each other are equal and lower than the other eyes.
-When the starter is pressed, the voltage drops to around 8-10 Volts.
Electrolyte leaks from one eye to the other.
C) Causes of Battery Failure:
1-Defective starter motor or circuit
2-Placing receivers that draw high currents far above the capacity of the battery and charging system.
3- Frequent starting of the vehicle by using the vehicle at very short distances
4-Leaving the lamps and receivers on
5- If the voltage value produced by the alternator is above the factory value; OVERCHARGING
6- If the voltage value produced by the alternator is below the factory value; Sulphation
7-Insufficient charge caused by the looseness of the dynamo belt
8-Lack of adjustment of voltage regulator
9- Exposure to hidden discharge due to continuous wetness and dust on the battery
10-The hardening of the plates, namely sulfation, due to long discharge of the battery or low charge
11-Short circuit in the battery
12- Loss of sensitivity of the plates in contact with the air as a result of the decrease in the electrolyte level
13- Adding acid or lime water to the battery instead of pure water when the electrolyte level drops
14-Exposing the battery to impact or extreme temperature
15-Failure to fix the battery to the vehicle
16-Not tightening the battery terminals well
17-In vehicles using dual batteries, obtaining a separate power from a single battery

About Battery

Battery Selection and Installation
How to Choose a Battery?
For the right battery selection;
• Battery sizes L1-L2 etc. DIN codes,
• Capacity value (Ah),
• Cold cranking current (CCA),
• Pole head type and directions are the basic criteria.
How Should Battery Installation Be Done?
• Before removing the battery on the vehicle, check the capacity information, dimensions and polarity direction and cable markings, if necessary, put +/- signs on the cables. The negative cable must be disconnected first, then the positive cable.
• Make sure that the voltage and charge value of the new battery and the polarity are correct.
• Prepare the cable connections (cable ends should be cleaned with hot water if oxidized) and the battery tray by carefully examining them.
• Connect the Positive (+) wire first. Then connect the negative (-) ground wire. Make the mounting and pole connections of the new accumulator firmly according to the manufacturer's instructions.
• Be particularly careful when clamping the battery terminals from the side, as over-tightening will damage the terminals. Assembly must be done carefully according to the manufacturer's instructions, as loose clamping will cause explosions.
• Coat terminals and cable ends with anti-corrosion agent.
• Batteries should be stored in a closed, cool and dry place away from direct sunlight. Packing standards and conditions must be followed in stacking. In storage, stock and shipment should be made according to the production dates in accordance with the "First In - First Out" principle.
Recharging is required when the open circuit voltage of the battery drops below 12.4V with proper storage. Generally,
• Recharge requirement for Ca-Ca aqueous batteries:
• Every 6 months if the average storage temperature is below 25 degrees (*)
• Every 3 months if the average storage temperature is above 25 degrees (*)
• In hybrid flooded batteries, these times are about 1/2.
While charging, the electrolyte should not be allowed to overflow and the temperature should not exceed 45°C. If the temperature rises, reduce the charging current or stop charging until the battery cools down.
How to Charge the Battery?
- The battery loses power when not in use. This causes the battery voltage to drop. If the battery voltage value has fallen below 12.40V, it should be charged with a battery charger (Rectifier).
- Battery Charging should be done with a current of 1/20 of the rated capacity of the battery. Battery charging should be terminated when the battery voltage reaches 16.20V.
- During charging of AGM batteries, the battery charger (rectifier) ​​voltage should be fixed at 14.40 V. During charging, 14.40 V should not be exceeded.
- During charging of EFB batteries, the battery charger (rectifier) ​​voltage should be fixed at 15.80 V. During charging, 15.80 V should not be exceeded.
- Since the battery will heat up during charging, the electrolyte temperature should be kept in the range of 25-35 °C.
- After the battery charging process is finished, first the battery charger (rectifier) ​​should be turned off, then the battery connections should be removed.
- After the battery charging process is completed, the electrolyte level should be checked for the batteries that require maintenance, and if there is a decrease in the electrolyte level, PURE WATER should be added.
Safety and Environmental Precautions:
- Acid-resistant work clothes, plastic gloves, boots and glasses should be used as personal protection while connecting the battery to the charger.
- Since there will be explosive gas release during the battery charging process, ambient ventilation should be provided and fire should not be approached.
- Waste (scrap) batteries should never be thrown away, they should be delivered to battery services and dealers.
- Electrolyte (battery water) should never be used in sinks, sewers, etc. should not be spilled.
- When connecting the battery, first the positive connection cable and then the negative connection cable must be connected.
- Battery connection should be done carefully. Connection areas (pole heads) should never be left loose.
- The battery must be firmly fixed to the vehicle installed.
Service Instructions
- The battery storage area should be kept at a temperature of 18-25 °C and sparking works should not be done.
- The battery should not be turned sideways or upside down during storage and transportation. The contact with the ground should be cut off while the batteries are being stored. For this, wooden pallets should be used on the base.
- When installing the battery to the vehicle, the (+) Plus Terminal must be connected first. When removing the battery from the vehicle, the (-) Negative Terminal must be removed first.
- Depending on the production technology, the battery may lose water during its use. PURE WATER must be added when the electrolyte level reaches the minimum (min.) line in batteries that require maintenance (with a plug). Adding PURE WATER should be made up to the maximum (max.) line.
- In batteries with a charge indicator (belonging to a single cell), it is possible to monitor the status of the battery according to the color of the indicator.
*Green Color: Battery is charged
*Black Color: The battery needs charging.
*White Color: Indicates that distilled water should be added in well-maintained batteries, and that the battery should be changed in maintenance-free batteries.
- The battery should always be kept clean and the gas discharge holes should not be blocked. The battery should not be installed in the vehicle with its packaging.
- During the engine washing process, the battery should be taken under control and contact with water should be prevented by closing the connection points.
- Unused (scrap) batteries should never be thrown away and electrolyte should not be spilled. It should be delivered to the authorized dealer.
Battery Technical Service Equipment
Esan Akü 48V 30A Battery Charger
To charge the battery;
1 Plug in the rectifier power cable.
When the 2 +/- cable ends are free, the input fuse is removed, the 'start' button is pressed. Turn the amperage adjustment pot a little to the right. Set the battery level switch to position 1. Turn the volt adjustment pot to the right until 16.2 V is displayed on the screen.
Attach the 3 + cable (red) to the (+) terminal of the battery, - the (black) cable to the (–) terminal of the battery.
4 Output fuse of the rectifier is removed. How many amperes the battery will be charged from the battery charging table is adjusted by turning the amperage pot to the right.
5 How many hours to charge from the time clock is set
6 Adjusted in time;
- When the voltage value is reached, the amperage will automatically return to zero.
- The rectifier will turn off automatically when the set time is up.
7 If desired, the working rectifier can be stopped manually by pressing the 'stop' button.
8 When the electricity is cut off, the rectifier does not work by itself. It is started by pressing the 'Start' button.
9 After the battery is charged;
- The rectifier will turn off automatically or it is turned off by pressing the 'stop' button.
- Output fuse is turned off.
- The step switch is brought to the '0' position.
- Turn the amp and volt pot to the left to the '0' position.
- Remove the (–) terminal first, then the (+) terminal from the battery.
- If the battery is not charged, the rectifier volt setting is adjusted to a value close to the upper voltage limit and the process is repeated as of item 2.
Esan Battery Tester (Loaded shunt);
- The device cable ends are connected to the battery to be controlled (+ end to the positive pole of the battery, - end to the negative pole of the battery).
- Current is drawn from the battery for 10 seconds according to the battery capacity. (1st Tier, 2nd Tier)
- The voltage of the battery is monitored during current draw.
- According to the voltage value, it is decided whether the battery is defective or not.
Hydrometer (Density Meter);
- Electrolyte is drawn from the battery cell to the device by vacuum.
- The density of the electrolyte is measured from the scale of values ​​in the hydrometer.
Pen Voltmeter;
- The open circuit voltage of the battery is measured with a pen voltmeter.
- Pen voltmeter + tip is touched to the positive pole of the battery, - the cable end is touched to the negative pole of the battery.
- The value read on the device is the open circuit voltage of the battery.
Need to Know
What should be done if the battery voltage is lower than 12.4V in open circuit mode?
- It should be connected to the supply charge with 1/20 amp of the Battery Rated Capacity.
If the battery voltage connected to the vehicle is above 14.2V or 14.5V, what is the reason?
- The vehicle connector is faulty.
If the battery voltage connected to the vehicle does not reach 13 Volts, what is the reason?
- Vehicle connector or alternator is defective.
If the battery voltage connected to the vehicle does not exceed 13.5V, what is the reason?
- One of the diodes of the alternator is broken.
If the battery voltage is higher than 13 Volts while the vehicle is idling, what is the reason?
- The vehicle connector is faulty.
What should we do if the indicator (lamp) does not show green color on the new battery?
- The ball of the indicator may be stuck. The battery should shake left and right.
If the label on the battery is wrinkled, and the colors of the screen printing paints are distorted, what is the reason?
- The battery is overcharged. The alternator should be checked.
If the voltage of one of the batteries is low in vehicles using dual batteries, what is the reason?
- It means 12 Volt current is drawn from one of the battery.
What should be done to get 12 Volt current in vehicles using dual batteries?
- A converter should be put into the circuit and current should be drawn from two batteries.
If a value is measured starting from the negative eye and increasing towards the positive eye, what is the reason?
- The ground wire is oxidized or the battery is not getting enough ground.
If the acid color is not clear but brown, what is the reason?
- The battery may have been overcharged, the battery life has expired, the active substance on the plates has been filtered and mixed with the electrolyte.
If the battery does not charge in the morning and works normally during the day, what is the reason?
- The acid densities and voltage of the battery should be checked, if there is no problem with the battery, the conductor, starter dynamo of the vehicle and, if the vehicle is diesel, the glow plugs must be checked.
What happens to the battery if the vehicle is used once a month?
- The battery becomes sulphated over time due to standby loss and becomes unable to start the vehicle. For this reason, the vehicle should be run for at least 10 minutes once every 15 days in summer and once a week in winter.
Can it use normal batteries in commercial taxis?
- 12V – 72Ah or 60 Ah TAXI BATTERY produced for them should definitely be used.
Which battery should be used in buses?
- Batteries specially produced for buses should be used.
If the battery acid density and voltage values ​​are normal in diesel vehicles, but the vehicle does not start, what is the reason?
- The glow plugs of the diesel vehicle may be defective. Spark plugs should be checked.
What should be considered when removing and installing the battery from the vehicle?
- When removing the battery from the vehicle, the negative cable end must be removed first, and the positive cable end must be attached first.
If the battery is not used, should the acid in it be poured? - Battery acid should never be spilled.