25A/15A Smart 12V-24V Car Battery Charger & Booster

Portable Smart Charger & Booster for 12V-24V Vehicles

Keep your vehicle ready to start with this 25A/15A smart battery charger and car booster, engineered for 12V and 24V systems. Compatible with Lead Acid, AGM, GEL, EFB, Calcium and LiFePO4 batteries, it combines fast, controlled charging with an assist-start function for low or weak batteries.

Driven by a microprocessor (CPU), this charger uses an 8-stage automatic charging program that adjusts voltage and current throughout the cycle. It helps recover deeply discharged batteries, then shifts to maintenance mode to reduce the risk of overcharge. The upgraded charging curve is designed to be more battery-friendly, extending usable life and supporting capacities from approximately 6Ah up to 400Ah. A large color display clearly shows charging status, voltage, current and mode so you can monitor progress at a glance, even from a distance.

The robust aluminum alloy housing offers durability and improved heat dissipation, supported by an integrated cooling fan and over-temperature protection (around 65°C ±5°C). Input is 100-240V AC, 50-60Hz, making it suitable for use in different regions with the correct plug type (US, EU, AU, UK). Rated output is 12V 25A and 24V 15A, with a minimum start voltage of 5.0V to help recover low batteries. Multiple current options (2A, 8A, Auto, 20A, 25A) allow you to choose gentle charging for smaller batteries or higher current for larger ones.

The integrated BOOSTER (assist start) function helps start vehicles with low batteries without removing the battery from the vehicle, when used according to the instructions. Built-in protections include reverse polarity protection, output short-circuit protection, non-battery link protection, over-voltage protection and over-temperature protection. This makes it suitable for a wide range of applications: cars, motorcycles, scooters, ATVs, snowmobiles, golf carts, trucks, RVs and more. The compact design and solid hand feel make it easy to store in a garage, workshop or vehicle for routine maintenance or roadside use.

Why It's a Smart Choice

• Versatile compatibility with most 12V and 24V Lead Acid, AGM, GEL, EFB, Calcium and LiFePO4 batteries across many vehicle types.
• 8-stage intelligent charging with multiple current settings for safer, more efficient charging and maintenance of small and large batteries.
• Integrated assist-start booster and comprehensive safety protections for practical roadside support and reduced risk during use.

FAQ

Q: Which batteries does this charger support?
A: It supports most 12V and 24V lead acid types including Wet, AGM, GEL, EFB, Calcium, as well as LiFePO4 batteries within the approximate 6-400Ah capacity range.

Q: Can I leave the charger connected for maintenance charging?
A: Yes, the 8-stage automatic program is designed to switch to maintenance/float-style charging once the battery is full, helping to avoid overcharging when used as directed.

Q: Is it suitable for motorcycles and smaller batteries?
A: Yes. You can select lower current settings such as 2A or 8A for motorcycles, scooters and other smaller batteries to provide a gentler charge.

Q: What does the BOOSTER function do?
A: The BOOSTER (car assist start) mode provides additional current to help start a vehicle with a low battery. Always follow the manual for correct connection and usage before attempting assist start.

Q: Does it work in different countries?
A: The charger accepts 100-240V AC, 50-60Hz input. Choose the appropriate plug type (US, EU, AU or UK) for your region and ensure it matches your local socket standard.