Bosch C80-Li 6V/12V Battery Charger — 20A Fast-Charge & Smart Maintenance for LiFePO4 and Lead-Acid

The BOSCH C80-Li is a high-power, intelligent 6V/12V battery charger that fast-charges lead-acid and LiFePO4 batteries up to 20A while protecting and maintaining battery health.

Designed for seasonal vehicles, workshop work, and mobile maintenance, the C80-Li from Bosch combines rapid charging performance with microprocessor control and multiple safety features. It supports a wide range of battery types—12V lithium-iron-phosphate (LiFePO4), standard lead-acid, AGM, EFB, GEL, SLI, and 6V lead-acid—making it a versatile charger for cars, motorcycles, vans, trucks, SUVs, and small boats. Bosch built the unit to be durable and user-friendly: IP65 splash/dust resistance, protection against reverse polarity, and an auto-resume to the last charging mode if briefly disconnected.

How quickly will the C80-Li recharge a drained battery?

The C80-Li delivers up to 20 amps in fast-charge mode, significantly shortening recharge time compared with standard trickle chargers. Actual charging duration depends on battery capacity, state-of-charge and chemistry, but the higher current option is ideal for bringing larger 12V batteries back to usable levels faster.

• Fast-charge current up to 20 A for rapid top-up.
• Microprocessor control optimizes charging curve and speed.
• Selectable modes let you choose fast or maintenance charging.
• Resumes last mode automatically after brief power interruptions.

Which battery types and vehicles are supported by this charger?

The C80-Li supports a broad set of chemistries: 12V LiFePO4 (lithium-ion), lead-acid, AGM, EFB, GEL and SLI batteries, plus 6V lead-acid for motorcycles and small equipment. That compatibility makes it suitable for seasonal or mixed fleets where different battery technologies are in use.

• 12V lithium-iron-phosphate (LiFePO4) and multiple lead-acid variants supported.
• Works for motorcycles, cars, vans, trucks, SUVs and motorboats.
• 6V support for classic motorcycles and small vehicles.
• Maintenance mode preserves batteries in long-term storage.

What safety and durability features protect my vehicle and the charger?

Bosch equipped the C80-Li with essential protection systems to prevent damage during charging. Overheating, short-circuit and reverse-polarity protections reduce risk, while IP65 ingress resistance helps the charger stand up to workshop or outdoor use.

• Overheat and short-circuit protection for safer operation.
• Reverse-polarity guard prevents damage from incorrect connections.
• IP65 rating resists splashes and dust for tougher environments.
• Robust casing and included soft bag for transport and storage.

Can it maintain battery health while a vehicle is stored or serviced?

Yes—the C80-Li offers maintenance charging to keep seasonal vehicles and infrequently used batteries at optimal state-of-charge. It also has a power-supply function so you can service or replace a battery without losing vehicle settings or electronic configurations.

• Maintenance mode extends service life for batteries in storage.
• Power-supply mode powers vehicle systems during battery replacement.
• Pre-set modes simplify long-term upkeep and reduce overcharging risk.

Who is this for? The BOSCH C80-Li is aimed at vehicle owners, fleet managers, motorcycle enthusiasts, marine users and professional workshops that need a versatile, fast and reliable charger. If you service different battery chemistries, want faster recovery of larger batteries, or need a durable charger that can maintain batteries in storage and protect vehicle electronics during replacement, the C80-Li is a practical, all-around solution.