TOPDON T4000C 12V 4A Smart Battery Charger

The TOPDON T4000C is a smart 4A charger for 6V and 12V batteries that combines a charger, maintainer, trickle charger, desulfator, and DC power supply into a single compact device. It features five charging modes – 12V4A Norm, 12V4A Li, 12V1A Repair, 6V4A Norm, and 12V Supply – and a 9-step charging algorithm that optimizes battery health and extends lifespan. Compatible with lead‑acid batteries including Wet, Gel, MF, CA, EFB, AGM types, as well as 12V lithium‑ion batteries up to 150Ah, it can also provide a constant 13.5V at up to 4A in SUPPLY mode to power onboard electronics. Its IP65-rated case, resistant to UV rays and cold down to −4 ℉, allows for outdoor use in harsh conditions. With intuitive LED indicators, a memory function, and 24/7 safe connectivity, the T4000C is a versatile charger for both workshops and private users.

• All‑in‑one smart charger, battery maintainer, trickle charger, desulfator and DC power supply
• Compatible with 6V and 12V lead‑acid and 12V lithium‑ion batteries up to 150Ah
• Five charging modes: 12V/4A Norm, 12V/4A Li, 12V/1A Repair, 6V/4A Norm and 12V Supply
• 9‑step smart charging technology optimises battery health and extends service life
• SUPPLY mode provides a constant 13.5V DC to power on‑board devices up to 4A
• Safe 24/7 connection allows long‑term battery maintenance without over‑charging
• Works in cold temperatures down to −4 ℉ (−20 ℃) for year‑round use
• UV‑resistant, IP65 waterproof enclosure protects against dust, water and sun exposure
• Intuitive LED indicators make operation simple and show charging status at a glance
• One‑tap charging and memory functions automatically select the last used mode