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Bosch C-Line: Battery charger for home use

For safe charging of batteries in cars, two-wheelers, boats, campers, classic cars and commercial vehicles with proven Bosch quality.

Even the best battery reaches its limits due to extended stationary periods, frequent short distance driving and temperatures below zero degrees. With the Bosch C-Line battery chargers, you can charge your vehicle batteries yourself and stay mobile.

Regularly recharging the batteries of vehicles that are used seasonally, such as motorcycles, cars, or boats, maintains their function and starting ability and ensures a longer service life.

With their modern design and proven Bosch quality, the five variants of the new Bosch C-Line chargers cover all individual requirements. Depending on the version, they are suitable for 6, 12, or 24 volt lead-acid, AGM, EFB, GEL, SLI, or even 12 volt Li-Ion (LiFePO₄) batteries.

Functions and advantages — The new Bosch chargers are characterized by higher performance, faster charging options, extended functions, and simple one-button operation.

The 5 variants of the C-line

C10 battery charger for cars, motorcycles, vans, quads, and more. For 12 V lead-acid, AGM, GEL, EFB, and SLI battery types.

C10 - Convenient and efficient

The C10 battery charger charges 12 volt lead-acid, AGM, GEL, EFB, and SLI batteries in cars and motorcycles.

Advantages for you

Outstanding charging performance: More powerful and faster than a standard charger.
Intelligent and automatic: The integrated microprocessor ensures an optimal charge level. Once the battery is fully charged, the device automatically switches to the trickle charge phase so that the battery always has full capacity.
Dust and water-resistant: The charger is dust and splash-proof to IP65.
Safe: If the charger experiences a short circuit, the charging process is automatically interrupted. Deep-discharge batteries are not charged for safety reasons.

C30 - Fast, efficient, and flexible

The C30 battery charger was designed for 6 volt and 12 volt lead-acid, AGM, EFB, GEL, and SLI batteries in scooters, motorcycles, cars, and motorboats.

Advantages for you

High safety and durability: Features overheating and short-circuit protection, protection against reversed polarity, IP65 dust- and splash water-proof.
Maintenance and regeneration functions: Extends the lifetime of batteries in seasonal use.
Intelligent operation: The integrated microprocessor ensures faster charging times. The charger saves the last selected charging mode. Thereby, the charger can continue charging in the same mode in the event of a brief disconnection from the power supply.
Fully automatic and easy to operate: Convenient one-button operation, LED light indicates charging progress.

The C70 battery charger charges 12 to 24 V lead-acid, AGM, GEL, EFB, and SLI batteries. It can be used with cars, commercial vehicles, and motorboats.

C70 - Robust and modern

The C70 battery charger charges 12 volt and 24 volt lead-acid, AGM, EFB, GEL, and SLI batteries and can be used with cars, commercial vehicles, and motorboats.

Advantages for you

Power supply mode: While the battery is being serviced or replaced, the battery charger supplies the vehicle with energy so that no vehicle settings are lost.
High safety and durability: Features overheating and short-circuit protection, protection against reversed polarity, IP65 dust- and splash water-proof.
Maintenance and regeneration functions: Extends the service life of batteries in seasonal use.
Intelligent operation: The integrated microprocessor ensures faster charging times. The charger saves the last selected charging mode. Thereby, the charger can continue charging in the same mode in the event of a brief disconnection from the power supply.

The C40-Li battery charger charges 12 volt lithium-ion (LiFePO4) as well as 6 volt and 12 volt lead-acid batteries (AGM, EFB, GEL, and SLI batteries) in scooters, motorcycles, cars, and motorboats.

C40-Li - Modern and versatile

The C40-Li battery charger charges 12 volt lithium-ion (LiFePO₄) as well as 6 volt and 12 volt lead-acid, AGM, EFB, GEL, and SLI batteries in scooters, motorcycles, cars, and motorboats.

Advantages for you

Lithium-ion battery charging: Motorcycle and LiFePO₄ mode charges 12 volt LiFePO₄ batteries with a charging current of up to 5 amps.
Intelligent operation: The integrated microprocessor ensures faster charging times. The charger saves the last selected charging mode. Thereby, the charger can continue charging in the same mode in the event of a brief disconnection from the power supply.
High safety and durability: Features overheating and short-circuit protection, protection against reversed polarity, IP65 dust- and splash water-proof.
Maintenance and regeneration functions: Extends the service life of batteries in seasonal use.

The C80-Li battery charger is suitable for 12 volt lithium-ion (LiFePO4) as well as 6 volt and 12 volt lead-acid batteries (AGM, EFB, GEL, and SLI batteries) in motorcycles, cars, and motorboats.

C80-Li - Extremely powerful

The C80-Li battery charger charges 12 volt lithium-ion (LiFePO₄), lead-acid, AGM, EFB, GEL, and SLI batteries as well as 6 volt lead-acid batteries in motorcycles, cars, and motorboats.

Advantages for you

Fast and efficient: With its outstanding charging performance, the battery charger is faster and more powerful than a standard charger. Batteries are charged with a charging current of up to 20 amps in fast charging mode.
Intelligent operation: The integrated microprocessor ensures faster charging times. The charger saves the last selected charging mode. Thereby, the charger can continue charging in the same mode in the event of a brief disconnection from the power supply.
High safety and durability: Features overheating and short-circuit protection, protection against reversed polarity, IP65 dust- and splash water-proof.
Maintenance and regeneration functions: Extends the service life of batteries in seasonal use.
Power supply mode: While the battery is being serviced or replaced, the battery charger supplies the vehicle with energy so that no vehicle settings are lost.

Product comparison - all product features in detail

Charging modes at a glance

		C10	C30	C70	C40-Li	C80-Li
Auto mode	Safe charging of car batteries	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Motorcycle mode	Safe charging of motorcycle batteries	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Winter/AGM mode	For maintaining and extending battery life during seasonal vehicle downtimes and for charging AGM batteries.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Regeneration mode	Slow pulse charging for gradual recovery of a deeply discharged battery.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Power supply mode	Power supply of vehicle electronics without interruption when replacing the 12 V battery, so that no vehicle settings are lost.	C10 -	C30 -	C70 ✔	C40-Li -	C80-Li ✔
Push mode	For attempting to start the charging process with a deep discharge battery.	C10 -	C30 -	C70 -	C40-Li ✔	C80-Li ✔
Quick charge mode	Fast charging of (12 V lead-acid) batteries with a high charging current for a short period of time. This mode can only be used for 5 minutes. The mode can be used again after 30 minutes.	C10 -	C30 -	C70 -	C40-Li -	C80-Li ✔
Lithium mode	Safe charging of lithium-ion (LiFePO₄) batteries	C10 -	C30 -	C70 -	C40-Li ✔	C80-Li ✔
6 V mode	Safe charging of 6 V batteries	C10 -	C30 ✔	C70 -	C40-Li ✔	C80-Li ✔
24 V mode	Safe charging of 24 V batteries	C10 -	C30 -	C70 ✔	C40-Li -	C80-Li -

Brief explanation of additional product features

		C10	C30	C70	C40-Li	C80-Li
Memory function	If the charger is disconnected from the power supply during the charging process, the device saves the mode selected previously. If the device is then reconnected to the power supply and the same battery type is connected, it will automatically restart the charging process in the mode previously in use.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Automatic charging control	Once the mode required has been selected, the charger automatically starts the charging process. When the battery is fully charged, the charger automatically switches to trickle charging.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Pulse charge	If the battery type cannot be clearly identified, the device charges the battery gently for 1-3 minutes using pulse charging in order to determine the correct battery type. As soon as this has been identified, the charger switches to standard charging mode.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Trickle charge phase	When the battery is fully charged, the charger maintains a low charging current to keep the battery at 100% charge.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Battery detection	The charger automatically recognizes the connected battery type. If this cannot be clearly identified, the device will pulse charge the battery for 1-3 minutes to determine the correct battery type automatically.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Overwrite mode	If the charger does not recognize the correct battery type, it can be selected manually.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
LCD display	When charging a battery, the LCD display accurately shows the current charge status and battery voltage.	C10 -	C30 -	C70 -	C40-Li -	C80-Li ✔

Functions for your safety

		C10	C30	C70	C40-Li	C80-Li
Overheating protection	If the charger becomes too hot during the charging process, the output power and the output current are automatically reduced to prevent damage to the device.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Overcurrent protection	If the input current is too high, the charger's internal fuse is tripped to prevent accidents.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Overvoltage protection	If the voltage of the connected battery is greater than or equal to the voltage of a fully charged battery, the charger stops the charging process.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Reverse polarity protection	If the charger terminals are connected the wrong way round, the charger will not charge the battery and will indicate via the LED light that the terminals need to be switched over.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Spark protection	After connecting the battery to the charger, the start of the charging process is delayed by 5 seconds to prevent sparking during connection.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Device protection function	In the event of a short circuit in the charging cable, the charging cable fuse trips to prevent damage to the charger.	C10 -	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Short-circuit protection	If the charger experiences a short circuit, the charging process is automatically interrupted.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Open circuit protection	If the charger is connected to the mains but not to a battery, the charging process will not start in order to avoid accidents.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Dust and water-resistant	The charger is protected against dust and splash water in accordance with IP65.	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔

Scope of delivery

Battery charger — All new generation battery chargers from Bosch are supplied in plastic-free packaging with mains cable, mains connection, charging cable with clamps, bag, and movable hook.

Movable hook — All new generation battery chargers from Bosch are supplied in plastic-free packaging with mains cable, mains connection, charging cable with clamps, bag, and movable hook.

	C10	C30	C70	C40-Li	C80-Li
Battery charger	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Movable hook	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Bag	C10 ✔	C30 ✔	C70 ✔	C40-Li ✔	C80-Li ✔
Screw-fitted clamps	C10 ✔	C30 -	C70 ✔	C40-Li -	C80-Li ✔
Detachable clamps	C10 -	C30 ✔	C70 -	C40-Li ✔	C80-Li -
Eyelet cable	C10 -	C30 -	C70 ✔	C40-Li -	C80-Li ✔

Charger Finder

C10

	Supported battery types	Battery capacity	Charging voltage	Charging current
12 V mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 5 Ah - 120 Ah	Charging voltage 14,7 V (± 0,25 V)	Charging current 3.5 A (± 10%)

C30

	Supported battery types	Battery capacity	Charging voltage	Charging current
6 V mode	Supported battery types EFB, GEL, SLI	Battery capacity 1.2 Ah - 14 Ah	Charging voltage 7.2 V (± 0.25 V)	Charging current 0.8 A (± 10%)
12 V motorcycle mode	Supported battery types EFB, GEL, SLI	Battery capacity 1.2 Ah - 14 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 0.8 A (± 10%)
12 V car mode	Supported battery types EFB, GEL, SLI	Battery capacity 14 Ah - 120 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 3.8 A (± 10%)
12 V winter/AGM mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 14 Ah - 120 Ah	Charging voltage 14.7 V (± 0.25 V)	Charging current 3.8 A (± 10%)
12 V regeneration mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 1.2 Ah - 120 Ah	Charging voltage 16.5 V (± 0.5 V)	Charging current 1.5 A (± 0.3 A)

C70

	Supported battery types	Battery capacity	Charging voltage	Charging current
12 V motorcycle/car mode	Supported battery types EFB, GEL, SLI	Battery capacity 2 Ah - 300 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 10 A (± 10%)
12 V winter/AGM mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 300 Ah	Charging voltage 14.7 V (± 0.25 V)	Charging current 10 A (± 10%)
12 V regeneration mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 300 Ah	Charging voltage 16.5 V (± 0.5 V)	Charging current 1.5 A (± 0.3 A)
12 V power supply mode	Supported battery types Connecting the charger to the vehicle	Battery capacity -	Charging voltage 13.6 V (± 0.5 V)	Charging current 5 A (± 10%)
24 V mode	Supported battery types EFB, GEL, SLI	Battery capacity 14 Ah - 120 Ah	Charging voltage 28.8 V (± 0.6 V)	Charging current 5 A (± 10%)
24 V winter/AGM mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 14 Ah - 120 Ah	Charging voltage 29.4 V (± 0.6 V)	Charging current 5 A (± 10%)

Note: The C70 battery charger is also suitable for 12 volt lead-acid batteries from 2 Ah in addition to the batteries specified in the user manual.

C40-Li

	Supported battery types	Battery capacity	Charging voltage	Charging current
6 V mode	Supported battery types EFB, GEL, SLI	Battery capacity 1.2 Ah - 14 Ah	Charging voltage 7.2 V (± 0.25 V)	Charging current 1 A (± 10%)
12 V Li-Ion motorcycle mode	Supported battery types Li-ion (LiFePo4)	Battery capacity 1.2 Ah - 14 Ah	Charging voltage 14.2 V (± 0.25 V)	Charging current 1 A (± 10%)
12 V Li-Ion mode	Supported battery types Li-ion (LiFePo4)	Battery capacity 14 Ah - 120 Ah	Charging voltage 14.2 V (± 0.25 V)	Charging current 5 A (± 10%)
12 V motorcycle/car mode	Supported battery types EFB, GEL, SLI	Battery capacity 2 Ah - 120 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 5 A (± 10%)
12 V winter/AGM mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 120 Ah	Charging voltage 14.7 V (± 0.25 V)	Charging current 5 A (± 10%)
12 V regeneration mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 1.2 Ah - 120 Ah	Charging voltage 16.5 V (± 0.5 V)	Charging current 1.5 A (± 0.3 A)
6 V push mode	Supported battery types EFB, GEL, SLI	Battery capacity 1.2 Ah - 14 Ah	Charging voltage 7.2 V (± 0.25 V)	Charging current 0.5 A (± 0.4 A)
12 V push mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 1.2 Ah - 120 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 0.5 A (± 0.4 A)

Note: The C40-Li battery charger is also suitable for 12 volt lead-acid batteries from 2 Ah in addition to the batteries specified in the user manual.

C80-Li

	Supported battery types	Battery capacity	Charging voltage	Charging current
6 V mode	Supported battery types EFB, GEL, SLI	Battery capacity 2 Ah - 120 Ah	Charging voltage 7.2 V (± 0.25 V)	Charging current 5 A (± 10%)
12 V Li-Ion mode	Supported battery types Li-ion (LiFePo4)	Battery capacity 2 Ah - 400 Ah	Charging voltage 14.2 V (± 0.25 V)	Charging current 15 A (± 10%)
12 V motorcycle/car mode	Supported battery types EFB, GEL, SLI	Battery capacity 2 Ah - 400 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 15 A (± 10%)
12 V winter/AGM mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 400 Ah	Charging voltage 14.7 V (± 0.25 V)	Charging current 15 A (± 10%)
12 V quick mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 400 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 20 A (± 10%)
12 V regeneration mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 400 Ah	Charging voltage 16.5 V (± 0.5 V)	Charging current 1.5 A (± 0.3 A)
12 V power supply mode	Supported battery types Connecting the charger to the vehicle	Battery capacity -	Charging voltage 13.6 V (± 0.5 V)	Charging current 5 A (± 10%)
6 V push mode	Supported battery types EFB, GEL, SLI	Battery capacity 2 Ah - 120 Ah	Charging voltage 7.2 V (± 0.25 V)	Charging current 1.5 A (± 0.5 A)
12 V push mode	Supported battery types AGM, EFB, GEL, SLI	Battery capacity 2 Ah - 400 Ah	Charging voltage 14.4 V (± 0.25 V)	Charging current 1.5 A (± 0.5 A)

Note: The C80-Li battery charger is also suitable for 12 volt lead-acid batteries from 2 Ah and 12 volt LiFePo₄ batteries from 2 Ah in addition to the batteries specified in the user manual.

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