BMW 77 02 8 551 896 - User Manual

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BMW Motorcycle Charger

Safety guidelines

Please read this complete set of instructions before operating the charger. It

contains important information on the correct use. For damage which results

from the non-compliance of these operating instructions, the warranty is

rendered invalid.

Warning: Explosive gases are emitted when batteries charge. Avoid flames or

sparking. Disconnect the charger from the mains before you connect the

battery. Battery acid is extremely caustic. Avoid any contact with skin or

clothing. Immediately wash with soap and water in the case of unintentional

contact.

Warning: Never charge Li-ion or other battery technologies with this charger.

This can cause serious damage to the device or start a fire. Only use for

rechargeable lead batteries in wet, AGM, or gel technology. Never place the

charger on the battery during the charging process.

Never place the charger under water, make sure that no liquids penetrate it.

Caution: With wet batteries, before connecting the charger, the acid level must

be checked. If needed, top up lead acid batteries with distilled water:

Maintenance-free batteries (gel or AGM) should not be topped off with distilled

water. This is not permitted. Avoid short circuits to the battery poles. Do not

place tools or metallic objects on the battery – this can lead to short circuits and

fires. The device may only be repaired by technicians who are familiar with the

relevant safety regulations and instructions. Do not load the electrical and

charging cables through unnecessary pulling or jamming/clamping. The device

may not be operated with a damaged connection cable. Do not operate the

device in the proximity of easily flammable materials. The device heats up

during operation. Do not place the charger on flammable or sensitive surfaces.

There is a risk of fire or a risk of damaging surfaces, e.g. of seats or painted

surfaces.

Caution: The charger cable for connection to the motorcycle may not be

lengthened. Only use the charging adapter provided on the battery poles.

Caution: Do not expose the charger to excessive heat; avoid mechanical impact

caused by dropping or falling. Avoid damage or use of force on the operating

keys, e.g. with tools or objects.

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Summary

Operation and Display

Connecting to the Mains

Connects charger to mains, device identification appears, 3 LEDs light up.

Setting the Language

Access language menu via F1 key, select and confirm language.

Charging Process and Status

Charging Process Details

Automatic charging based on characteristic, displays progress via bars/percent and parameters.

Charging Progress Indication

Bars and percent increase showing end of process at 100%.

Charging Pauses

Pauses inserted by vehicle system when connected via on-board socket.

Battery Charged State

Battery fully charged, monitored for recharge, maintenance charging performed.

Sleep Mode Operation

Charger enters sleep mode to save energy when battery is fully charged.

Charging Error Display

Device interrupts charging, displays 'Charging error' if battery cannot be charged.

Problems and Troubleshooting

Self-Test and Function Check

Checks device identification and charging readiness upon connection to mains.

Key Input Behavior

Keys require longer press to avoid accidental activation.

Device Heating During Operation

Charger warms up during operation; this is normal.

Motorcycle Not Starting

Vehicle may not start even if battery shows fully charged.

Device Shows Charger Error

Battery could not be loaded; restart charging or contact workshop.

LED Error Light Indication

Indicates battery voltage is too high (exceeding permitted range).

Display Not Lighted

Device is in energy-saving sleep mode; wake up with key press.

Back Current Issue

Low current flows from battery to charger when not connected to mains.

Maintenance and Cleaning

Charger is maintenance-free, clean with dry lint-free cloth.

Environmental Protection and Disposal

Environmental Protection Measures

Disconnect device when not in use to save energy.

Charger Disposal

Dispose of unusable devices according to regulations for electronic waste.

The BMW Motorcycle Charger is a high-quality, microprocessor-controlled charging and trickle charging device designed for 12V BMW motorcycle batteries. It is suitable for charging wet, AGM, or gel lead-acid batteries with capacities ranging from 6 to 25 Ah. The charger can be connected via the BMW on-board socket or directly to the battery poles using a suitable charging adapter. It is specifically designed for BMW motorcycles with CAN Bus technology, operating fully automatically according to its programmed charging characteristic. The device can remain connected to the battery or vehicle for extended periods, performing charging cycles, monitoring the battery, and recharging it as necessary.

Function Description:

The charger features a membrane keyboard on the front for setting the device. It includes LED displays (yellow, green, red) to indicate its status: steady yellow for power, blinking yellow for sleep mode, steady green for battery charging, and steady red for an error. A 2-line display with 2 x 16 characters shows function and status information, which is not lit in sleep mode. Control keys include left and right for menu navigation, an OK key to confirm input and exit menus, and an F1 key to call up the language menu. Available display languages are German, English, French, Spanish, Italian, and Portuguese.

When connected to the mains, the device displays its identification, and three LEDs light up for 2 seconds, indicating it is operational. The language menu can be accessed by pressing the F1 key for approximately 1 second. The selected language is shown in the center of the display, and users can navigate left and right to choose an option, confirming with the OK key. This menu is only accessible when the device is not charging or not connected to the battery/vehicle.

The charger's display provides various status messages. "No battery" indicates that the charger is not connected to the battery or vehicle. If this message appears despite being connected to the on-board socket, it may mean the vehicle battery is completely discharged, preventing charging via the on-board socket. In such cases, the battery should be disconnected from the vehicle and charged directly via its poles. "Short polarity reversed" appears if the charging clips are touching or if the battery is connected with reverse polarity. This message can also be displayed with deep-discharged batteries or residual voltage.

The charging process begins automatically if the battery can be charged. The upper display line shows the charging progress with bars and a percentage, while the lower line displays charging parameters (current and voltage). As charging progresses, the status display updates, with the number of bars and percentage increasing to 100% when fully charged. The charging duration depends on the battery's charging and aging condition, as well as its size.

"Charging pauses" can occur if the charger is connected to the vehicle via the on-board socket, due to the vehicle's electronic system. The device automatically resumes charging after the vehicle's electronic system releases it. "Charging Complete Battery mainten" indicates that the battery is fully charged. The device can be disconnected or remain connected, as it will monitor and recharge the battery as needed, performing equalization charging (battery maintenance). This maintenance step is primarily carried out with a directly connected battery using the charging adapter.

In "Sleep mode," activated when the battery is fully charged, the charger switches to an energy-saving state, with the "Power" LED blinking. The device remains connected, monitoring and recharging the battery as needed. After 24 hours, the charging cycle restarts. Pressing any key on the keypad wakes the device, and it returns to sleep mode after approximately 10 seconds.

A "Charging error" message is displayed if the battery cannot be charged, and the "Error" LED blinks. This indicates that the battery could not be charged according to the programmed characteristic. It does not necessarily mean the device or battery is defective. Users should disconnect and reconnect the charger from the mains to restart the process. If the problem persists, the battery and/or charger should be checked.

For deep-discharged batteries, if connected directly to the battery poles via the charging adapter, the display may show "Battery deep discharged?" and prompt "Start charging Press OK". Pressing the OK key for at least one second will initiate the charging process. If the display shows "Charge Pausing" for deep-discharged batteries connected directly to the poles, it means the battery cannot be charged. In such cases, the device should be disconnected from the mains and restarted. If the issue persists, the battery must be checked by an authorized BMW Motorrad dealer.

Important Technical Specifications:

Mains voltage: 100 - 240 V ~ 50/60 Hz
Charging current: max. 2.5 A
Charge-end voltage: 14.4 V
Temperature category: ta 40B
Weight: approx. 800 g
Cable length: Power cable: 1.9 m, charging cable: 1.3 m
Charging characteristic: IUOU with charging cut-off and repeat cycles
Sleep mode: Display off to save energy, "Power" LED blinks when battery is fully charged.

Usage Features:

Connecting to the mains: Device identification and 3 LEDs light up for 2 seconds.
Language selection: Press F1 key for ~1 second. Navigate with left/right keys, confirm with OK. Only available when not charging or connected.
"No battery" display: Indicates no connection to battery/vehicle. For completely discharged batteries, direct connection to battery poles may be required.
"Short polarity reversed" display: Indicates touching clips or reverse polarity connection.
Charging process: Automatic, displays progress with bars and percentage, current, and voltage.
Charging pauses: Occur with on-board socket connection due to vehicle electronics.
Battery maintenance: Performed after full charge, especially with direct battery connection.
Sleep mode: Energy-saving, "Power" LED blinks. Wakes up by pressing any key.
"Charging error" display: Indicates inability to charge. Restart device; if problem persists, check battery/charger.
Deep-discharged batteries: May require direct connection to battery poles and manual initiation of charging.

Maintenance Features:

Self-test/function check: Upon mains connection, displays "No battery" and all 3 LEDs light up for 2 seconds. If this doesn't happen, have it checked by a BMW Motorrad dealer.
Key responsiveness: Keys require a longer press to avoid accidental activation.
Device heating: Normal during operation, heat dissipates through the housing. Avoid placing on flammable or sensitive surfaces.
Motorcycle not starting despite "Battery fully charged": The charger is not a battery tester; the battery might still be defective.
"Charger error" display: Indicates battery could not be loaded according to programmed characteristic. Restart charging; if battery warms up excessively, stop and contact a workshop.
LED error lights up: If battery voltage exceeds 16V, "no battery" is displayed, and the "error" LED lights up.
Display not lighted but connected: Device is in "Energy-saving mode" ("Power" LED blinks). Press any key to wake up.
Back current: If connected to battery but not mains, a low current flows back. Disconnect from battery poles if not connected to mains to prevent complete discharge.
Environmental protection: Disconnect device from mains and vehicle when not in use to save energy.
Cleaning: Maintenance-free except for occasional cleaning. Disconnect from battery and mains, then wipe with a clean, lint-free, antistatic, dry cloth. Do not use abrasive, chemical, or solvent-containing agents.
Disposal: At the end of its life cycle, dispose of the device according to legal regulations at community collection locations or recycling companies. Electronic waste is hazardous and should not be disposed of in household garbage.