Kawasaki J300 - Service manual > Battery
- Turn the ignition switch off.
- Open the seat.
Battery Cover [B]
Battery Case Cover [B]
- Slide the red cap [A].
- Disconnect the negative (-) cable [B] and then positive (+) cable [C].
NOTICE Be sure to disconnect the negative (-) cable first
- Remove the battery.
- Visually inspect the surface of the battery container.
- Put the battery into the battery case so that the positive (+) terminal faces right side of the motorcycle.
- Connect the positive (+) cable [A] (red cap) to the positive (+) terminal first, and then the negative (-) cable [B] to the negative (-) terminal.
- Apply a light coat of grease on the terminals to prevent corrosion.
- Cover the positive (+) terminal with the red cap [C].
- Install the battery case cover and tighten its bolts.
- Install the battery cover and tighten its screws.
NOTICE If each battery cable is not correctly disconnected or connected, sparks can arise at electrical connections, causing damage to electrical and DFI parts.
- Make sure that the model name [A] of the electrolyte container matches the model name [B] of the battery. These names must be the same.
Battery Model Name
NOTICE Each battery comes with its own specific electrolyte container; using the wrong container may overfill the battery with incorrect electrolyte, which can shorten battery life and deteriorate battery performance.
Be sure to use the electrolyte container with the same model name as the battery since the electrolyte volume and specific gravity vary with the battery type.
NOTICE Do not remove the aluminum sealing sheet [A] from the filler ports [B] until just prior to use. Be sure to use the dedicated electrolyte container for correct electrolyte volume.
DANGER Sulfuric acid in battery electrolyte can cause severe burns. To prevent burns, wear protective clothing and safety glasses when handling electrolyte. If the electrolyte comes in contact with your skin or eyes, wash the area with liberal amounts of water and seek medical attention for more severe burns.
- Place the battery on a level surface.
- Check to see that the sealing sheet has no peeling, tears, or holes in it.
- Remove the sealing sheet.
- The battery is vacuum sealed. If the sealing sheet has leaked air into the battery, it may require a longer initial charge.
- Remove the electrolyte container from the vinyl bag.
- Detach the strip of caps [A] from the container and set aside, these will be used later to seal the battery.
- Do not pierce or otherwise open the sealed cells [B] of the electrolyte container. Do not attempt to separate individual cells.
- Place the electrolyte container upside down with the six sealed cells into the filler ports of the battery. Hold the container level, push down to break the seals of all six cells. You will see air bubbles rising into each cell as the ports fill.
- Do not tilt the electrolyte container.
- Check the electrolyte flow.
If no air bubbles [A] are coming up from the filler ports, or if the container cells have not emptied completely, tap the container [B] a few times.
- Be careful not to have the battery fall down.
- Keep the container in place. Don't remove the container from the battery, the battery requires all the electrolyte from the container for proper operation.
NOTICE Removal of the container before it is completely empty can shorten the service life of the battery.
Do not remove the container until it is completely empty.
- After filling, let the battery sit for 20 - 60 minutes with the electrolyte container kept in place, which is required for the electrolyte to fully permeate into the plates.
- Make sure that the container cells have emptied completely, and remove the container from the battery.
- Place the strip of caps [A] loosely over the filler ports, press down firmly with both hands to seat the strip of caps into the battery (don't pound or hammer). When properly installed, the strip of caps will be level with the top of the battery.
NOTICE Once the strip of caps is installed onto the battery, never remove the caps, nor add water or electrolyte to the battery.
- Charging the battery immediately after filling can shorten service life.
- Newly activated sealed batteries require an initial charge.
Standard Charge: 1.2 A × 5 - 10 hours
If using a recommended battery charger, follow the charger's instructions for newly activated sealed battery.
Battery Mate 150-9
OptiMate PRO 4-S/PRO S/PRO2
If the above chargers are not available, use equivalent one.
- Let battery sit 30 minutes after initial charge, then check voltage using a voltmeter (Voltage immediately after charging becomes temporarily high. For accurate measuring, let the battery sit for given time.).
- Charging rates will vary depending on how long the battery has been stored, temperature, and the type of charger used. If voltage is not at least 12.8 V, repeat charging cycle.
- To ensure maximum battery life and customer satisfaction, it is
recommended the battery be load tested at three times its amp-hour rating
for 15 seconds.
Re-check voltage and if less than 12.8 V repeat the charging cycle and load test. If still below 12.8 V the battery is defective.
1) No need of topping-up
No topping-up is necessary in this battery until it ends its life under normal use. Forcibly prying off the seal cap to add water is very dangerous. Never do that.
2) Refreshing charge
If an engine will not start, a horn sounds weak, or lamps are dim, it indicates the battery has been discharged. Give refresh charge for 5 to 10 hours with charge current shown in the specification (see Refreshing Charge).
When a fast charge is inevitably required, do it following precisely the maximum charge current and time conditions indicated on the battery.
NOTICE This battery is designed to sustain no unusual deterioration if refresh-charged according to the method specified above. However, the battery's performance may be reduced noticeably if charged under conditions other than given above. Never remove the seal cap during refresh charge. If by chance an excessive amount of gas is generated due to overcharging, the relief valve releases the gas to keep the battery normal.
3) When you do not use the motorcycle for months.
Give a refresh charge before you store the motorcycle and store it with the negative cable removed.
Give a refresh charge once a month during storage.
4) Battery life
If the battery will not start the engine even after several refresh charges, the battery has exceeded its useful life. Replace it (Provided, however, the vehicle's starting system has no problem).
DANGER Batteries produce an explosive gas mixture of hydrogen and oxygen that can cause serious injury and burns if ignited. Keep the battery away from sparks and open flames during charging. When using a battery charger, connect the battery to the charger before turning on the charger. This procedure prevents sparks at the battery terminals which could ignite any battery gases. The electrolyte contains sulfuric acid. Be careful not to have it touch your skin or eyes. If touched, wash it off with liberal amount of water and seek medial attention for more severe burns.
A sealed battery can fully display its performance only when combined with a proper vehicle electric system. Therefore, replace a sealed battery only on a motorcycle which was originally equipped with a sealed battery.
Be careful, if a sealed battery is installed on a motorcycle which had an ordinary battery as original equipment, the sealed battery's life will be shortened.
Charging Condition Inspection
- Battery charging condition can be checked by measuring battery terminal voltage with a digital voltmeter [A].
- Remove the battery (see Battery Removal).
- Measure the battery terminal voltage.
- Measure with a digital voltmeter which can be read one decimal place voltage.
If the reading is 12.8 V or more, no refresh charge is required, however, if the read is below the specified, refresh charge is required.
Battery Terminal Voltage
Standard: 12.8 V or more
Terminal Voltage (V) [A]
Battery Charge Rate (%) [B]
Refresh charge is required [D]
- Remove the battery [A] (see Battery Removal).
- Do refresh charge by following method according to the battery terminal voltage.
WARNING This battery is sealed type. Never remove sealing cap [B] even at charging. Never add water. Charge with current and time as stated below.
Terminal Voltage: 11.5 - less than 12.8 V
Standard Charge 1.2 A × 5 - 10 h (see following chart)
uick Charge 5 A × 1 h
NOTICE If possible, do not quick charge. If quick charge is done unavoidably, do standard charge later on.
Terminal Voltage: less than 11.5 V
Charging Method: 1.2 A × 20 h
- Increase the charging voltage to a maximum voltage of 25 V if the battery will not accept current initially. Charge for no more than 5minutes at the increased voltage then check if the battery is drawing current. If the battery will accept current decrease the voltage and charge by the standard charging method described on the battery case. If the battery will not accept current after 5 minutes, replace the battery.
Battery Charger [B]
Standard Value [C]
Current starts to flow [D]
- Determine the battery condition after refresh charge.
- Determine the condition of the battery left for 30 minutes after completion of the charge by measuring the terminal voltage according to the table below.
Alternator Cover Removal Drain: Engine Oil (see Engine Oil Change in the Periodic Maintenance chapter) Coolant (see Coolant Change in the Periodic Maintenance chapter) Remove: Storage Box (see Storage Box Removal in the Frame chapter) Lower Fairing (see Lower Fairing Removal In the Frame chapter) Exhaust Pipe (see Exhaust Pipe Removal in the Engine Top End chapter) Remove the band [A] and slide the dust cover [B]. Open the clamp [C]. Disconnect: Crankshaft Sensor Lead Connector [D] Alternator Lead Connector [E] Open the water hose clamp and disconnect the water bypass hose [A]. Loosen the water hose clamp screws and disconnect the water hoses [B]. Remove: Alternator Cover Bolts [C] Clamps [D] Alternator Cover [E]