Bosch C40‑Li 6V/12V Battery Charger — 5A Intelligent Charger for Lead‑Acid & LiFePO4, IP65 Weatherproof

Bosch C40‑Li is a compact, weatherproof intelligent charger that charges and maintains 6V/12V lead‑acid batteries and 12V LiFePO4 packs with up to 5A output.

The C40‑Li brings Bosch’s C‑Line convenience to motorcycles, cars, small trucks, boats and seasonal vehicles by offering multiple charging profiles, built‑in safety protections and a portable design. It supports conventional lead‑acid types (SLI, AGM, EFB, GEL) at 6V and 12V plus modern 12V LiFePO4 battery chemistry, making it suitable for mixed fleets or owners switching to lithium. The unit remembers the last selected charging mode and resumes it after brief power interruptions, simplifying repetitive maintenance work.

Which battery types and vehicles does the C40‑Li support?

The charger covers a wide range of battery technologies and vehicle classes—everything from scooters and motorcycles to cars, vans and small motorboats. Profiles are included for both 6V and 12V lead‑acid varieties and a dedicated 12V LiFePO4 setting for modern lithium packs.

• 6V and 12V lead‑acid, AGM, EFB, GEL and SLI battery compatibility
• 12V LiFePO4 (lithium‑ion) charging mode with up to 5A
• Suitable for motorcycles, scooters, cars, small trucks, SUVs, vans and motorboats

How does the C40‑Li keep batteries healthy over long storage periods?

Using a gentle maintenance and regeneration routine, the charger prevents deep discharge and reverses mild sulfation in stationary batteries. Regular conditioning during offseason storage helps preserve startability and overall battery lifespan without requiring professional intervention.

• Maintenance mode for long‑term trickle charging
• Regeneration function to recover lightly sulfated batteries
• Automated charge cycles reduce the risk of overcharge

What safety and durability features are built in?

The C40‑Li offers several protections to avoid common charging hazards and to endure workshop and marine environments. Bosch engineered the charger to be robust and forgiving for regular consumer use.

• Overheating and short‑circuit protection for safe operation
• Reverse‑polarity protection prevents incorrect connection damage
• IP65 rating resists splashes and dust for outdoor or garage use

How easy is it to use and carry on the go?

Controls are straightforward and the unit saves your last selected mode so you don’t have to reconfigure after brief power loss. The package includes practical accessories that make installation and storage simple for non‑technical users.

• Automatic memory of last charging mode after short disconnections
• Includes cable with eyelets and removable clamps for versatile connection
• Comes with wall‑mount hook, soft storage bag and clear instructions

Who is this for: The Bosch C40‑Li is aimed at vehicle owners who need a reliable, multi‑chemistry charger for seasonal or mixed‑use fleets—motorcyclists, classic car keepers, boat owners and small business fleets that require straightforward charging, maintenance and occasional battery regeneration without professional service.