Haisito 12V/24V 20A Car Battery Charger Maintainer — LiFePO4 & Lead‑Acid, 7‑Stage Smart Trickle

Haisito 12V/24V 20A is a smart multi-stage car battery charger and maintainer that safely charges and preserves 2–200Ah lead‑acid and LiFePO4 batteries with selectable current and built‑in protection.

This compact, 7‑stage desktop charger offers automatic charging modes for calcium, GEL, AGM, EFB and LiFePO4 chemistries, plus a trickle/maintenance function and pulse repair to revive weak batteries. It supports 110–240V input and selectable output currents for 12V and 24V systems, making it suitable for cars, motorcycles, boats, lawn equipment and small commercial vehicles.

How does this charger make everyday battery care easier?

The Haisito charger automates multi‑stage charging to move batteries from bulk charge to absorption, then to a safe float/trickle stage without manual intervention. It prevents overcharging and returns low‑voltage batteries to serviceable condition using pulse repair and a maintainer mode.

• Automatic 7‑stage charging sequence for thorough, balanced charging
• Trickle/maintainer mode prevents self‑discharge during long storage
• Pulse repair helps recover sulfated or deeply discharged batteries
• LED or display indicators show status and charging stage

Which batteries and vehicles can I use this charger with?

Designed for broad compatibility, the unit supports most common battery types: lead‑acid variants (AGM, GEL, flooded, EFB, MF, VRLA) and LiFePO4 lithium batteries. It's rated for 2–200Ah batteries and fits many applications from motorcycles to small tractors and electric golf carts.

• 12V/24V selectable output for passenger cars, trucks and larger systems
• Works with motorcycles, boats, lawn mowers, forklifts and tractors
• Accepts batteries from 2Ah up to 200Ah for flexible use
• Supports modern LiFePO4 chemistries alongside lead‑acid types

What safety features protect my battery and vehicle electrical system?

Built‑in protections guard both the battery and charger: temperature sensing adjusts charge behavior, while circuit protections prevent damage from common faults. You can safely charge in a wide ambient range and rely on the unit to stop or reduce current if an unsafe condition appears.

• Temperature detection for safe charging from -10°C to 40°C
• Overcharge, overvoltage, overcurrent and short‑circuit protections
• Low‑voltage detection and electrostatic spark protection for safe hookup
• Forced charging option for deeply discharged or misdetected batteries

How do I choose the right charge current and modes?

The charger offers three adjustable current presets so you can balance charge speed with battery longevity. Choose a lower current for gentle maintenance or smaller batteries and a higher current for faster recharge of larger battery packs.

• 12V: 5A, 10A or 20A settings; 24V: 3A, 5A or 10A equivalents
• Select the current according to battery capacity and condition
• Use maintainer/trickle mode for long‑term storage and float protection
• Long‑press button to enable forced charge if voltage is too low

Who is this for? The Haisito 12V/24V 20A charger is aimed at vehicle owners and small‑fleet operators who need a versatile, safe charger for mixed battery types — from daily drivers and motorcycles to boats, riding mowers and light commercial equipment. It suits DIYers who prefer an automated, multi‑stage solution with adjustable current and added recovery options for neglected batteries.