Modern chargers allow you to easily charge your battery without removing it or connecting the dedicated clips to the + (plus) and – (minus) terminals .

Left: The old-fashioned charging style of connecting the battery’s + (plus) and – (minus) terminals with
a special clip
. Right: A special cord called an “eyelet” is always connected to the battery’s + (plus) and – (minus) terminals . Simply connect the plug inserted into the eyelet to the plug on the charger, and you can easily charge the battery with just one touch.
This charger uses a 100V household outlet to restore a weakened battery. In the past, the most common method was to remove the battery from the vehicle, connect it to the positive and negative terminals with special clips , and leave it for a while.
Today’s chargers are designed to be permanently connected to a special cord called an “eyelet” without the need to remove the battery. Simply connect the plug on the eyelet to the plug on the charger, and you can easily charge the battery with just one touch.
Founded in 1997, CTEK is a Swedish-based manufacturer of high-performance, high-function battery chargers, boasting sales of over 4 million units worldwide. Under the slogan “Maximizing Battery Performance,” the company distributes battery charging products worldwide. It supplies its products to 42 automobile and motorcycle manufacturers worldwide as OEMs, and its products are recommended for use as battery charging and maintenance tools.
The company’s chargers are sold by various manufacturers and retailers in Japan as authorized dealers. The following two models, which are also compatible with motorcycle batteries, are currently being released by motorcycle parts manufacturer Daytona.

Daytona CTEK® Battery Charger MXS5.0…36,300 yen (tax included) Product Number: 91497
This is a high-end model of CTEK’s fully automatic motorcycle charger. It features an output switch function (maximum current 4.3A/0.8A) that can be used with both motorcycles and cars. It offers eight charging steps. It also includes a maintenance charge and sulfation removal function. It is waterproof and dustproof (IP65). It includes lead wires with clamps and lead wires with round terminals. It comes with a 5-year warranty.

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Charging steps: 8 steps

Step 1: Desulfation: This
function activates when sulfation has progressed due to over-discharge. It sends current and voltage pulses to break down the sulfation formed on the lead plates, restoring battery capacity.
Step 2: Soft
start to test if the battery will accept a charge. This step will prevent dangerous charging of a damaged battery.
Step 3: Bulk charge
This is the rapid charging phase. The battery is charged to about 80% capacity at maximum current without putting a strain on the battery. Step 4: Absorption/Osmosis charge The current is gradually reduced while maintaining the specified voltage, carefully completing the charge.
Step 5: Analyze:
Test if the battery can hold a charge. Batteries that cannot hold a charge should be replaced.
Step 6: Reconditioning:
Selecting Reconditioning Mode adds a reconditioning step to the charging process. This step increases the battery voltage, creates a moderate overcharge, and generates controlled amounts of gas within the battery. The gas circulates and agitates the stratified battery fluid, restoring the battery’s charging capacity.
Step 7:
Maintaining the float voltage keeps the battery voltage at its highest level.
Step 8: Pulse Maintenance:
If the battery voltage drops to 12.7V, it will pulse charge until it reaches 14.4V, keeping it at 95-100% charge at all times. As long as it’s plugged in, it will monitor the battery, charging it as needed as it discharges, to keep it fully charged.
[Set contents]
Charger
, lead wires with round terminals
, lead wires
with clips, storage pouch
, 8-step charging for 12V only. Compatible with batteries (open, sealed, gel, dry) from 1.2 to 110Ah.
15A blade fuse.
* Charging the battery while it is installed in the vehicle may affect the electrical system. Be sure to check the vehicle’s instruction manual and service data before use.
Daytona CTEK® Battery Charger XS0.8…25,300 yen (tax included) Product Number: 93007
This is the standard model of CTEK’s fully automatic motorcycle charger. It has a maximum current of 0.8A and six charging stages. It’s ideal for motorcycles, small marine vehicles, and small agricultural equipment. It features a maintenance charge and desulfation function. It’s waterproof and dustproof (IP65). It includes lead wires with clamps and lead wires with round terminals. It comes with a 5-year warranty.

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Charging steps: 6 steps

Step 1: Desulfation: This
function activates when sulfation has progressed due to over-discharge. It sends current and voltage pulses to break down the sulfation formed on the lead plates, restoring battery capacity.
Step 2: Bulk charge
This is the fast charging phase. The battery is charged to about 80% capacity at maximum current without putting a strain on it.
Step 3: Absorption/Osmosis Charging:
Gradually reduce the current while maintaining the specified voltage to carefully complete the charging.
Step 4: Analyze:
Test if the battery can hold a charge. Batteries that cannot hold a charge should be replaced.
Step 5:
Maintaining the float voltage keeps the battery voltage at its highest level.
Step 6: Pulse Maintenance
. When the battery voltage drops to 12.7V, pulse charge will occur until it reaches 14.4V, keeping it at 95-100% charge at all times. As long as it’s plugged in, it will charge the battery as needed to maintain a full charge and maintain its health.
[Set contents]
Charger,
lead wires with round terminals
, lead wires with clips
, storage pouch
, 6-step charging for 12V only. Compatible with open, sealed, gel, and dry batteries from 1.2 to 32Ah.
5A blade fuse.
* Charging the battery while it is installed in the vehicle may affect the electrical system. Be sure to check the vehicle’s instruction manual and service data before use.
Daytona CTEK Battery Charger Eyelet (with indicator harness)…4,400 yen (tax included) Product Number: 71691
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CTEK’s exclusive terminal system allows for constant connection without removing the battery. Simply connect the plug on the main unit to the plug on the charger to easily charge the battery. It also comes with an indicator that lets you check the battery’s charging status. The charging status is indicated by a three-stage flashing LED.
– Motorcycle specific
– Power consumption when LED is flashing: 0.018W (1.5mA)
– Blade fuse: 15A




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CTEK CT5 POWERSPORT (reference exhibit)

The CT5 POWERSPORT was exhibited at the Tokyo Motorcycle Show 2025. Compatible with 12V lead-acid batteries and 12V lithium (LiFePO4 batteries). Compatible with motorcycles, ATVs (buggys), jet skis, snowmobiles, etc. Maximum current is 2.3A. 8 charging steps.
Regular chargers compatible with four-wheeled vehicles from various countries are also available for sale.

Battery chargers designed specifically for various manufacturers around the world, including Porsche, BMW, Mercedes, Ferrari, Maserati, Bentley, etc., are also on standby. The photo was taken at the Tokyo Motorcycle Show 2025.



Maintain batteries that have weakened over the winter. Special Parts Takegawa has released two battery chargers that can also perform maintenance.
























