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If you're maintaining expensive agm, lifepo4, or commercial batteries with basic chargers, this 20a smart battery charger is the smart choice. It's significantly more advanced than the cheap 3-stage chargers that damage batteries and give false "full charge" readings.
The intelligent repair mode can revive deeply discharged batteries that other chargers abandon as "dead." silent cooling system and large lcd display provide professional workshop capability.
Features:
- 20a fast charging capability - high amperage charging reduces charging time vs basic 10a chargers
- 7-stage smart charging process - advanced charging profile protects battery life vs basic 3-stage chargers
- lead-acid agm lifepo4 compatible - universal battery chemistry support vs limited compatibility
- 12v/24v dual voltage - works with cars, motorcycles, trucks, and commercial vehicles
- intelligent repair mode - revives deeply discharged and sulphated batteries other chargers abandon
- microprocessor control - cpu manages optimal charging vs basic timer-controlled chargers
- temperature compensation - adjusts charging based on ambient temperature for battery health
- multiple safety protection - reverse polarity, overcharge, overheat, and short circuit protection
- real-time lcd display - live voltage, current, temperature, and charging stage monitoring
- silent fan cooling - intelligent temperature-controlled cooling prevents overheating
Specifications:
- output current: 20a (12v), 10a (24v)
- maximum power: 300w
- charging stages: 7-stage intelligent process
- battery range: 6ah - 300ah capacity
- minimum start voltage: 5.0v (deep discharge recovery)
Battery chemistry support:
- lead-acid - standard automotive batteries (most common)
- agm - start-stop and premium vehicle batteries
- lifepo4 - lithium iron phosphate (specialty applications)
- gel - deep cycle and marine applications
- efb - enhanced flooded batteries (newer start-stop systems)
- calcium - maintenance-free automotive batteries
Build quality:
- input voltage: 100-240v ac (universal power supply)
- efficiency: ~85% (reduced heat generation)
- material: pc fireproof shell construction
- cooling: intelligent silent fan system
- dimensions: 192 × 102 × 165mm (compact design)
- weight: 955g (portable professional unit)
Safety features:
- reverse polarity protection - prevents connection errors
- overcurrent protection - protects charger and battery
- overvoltage protection - prevents electrical damage
- thermal protection - temperature monitoring prevents overheating
- short circuit protection - immediate shutdown protects equipment
Charging modes & applications:
- car mode (12v):standard automotive battery charging with temperature compensation for reliable daily-use vehicle batteries.
- agm mode (12v/24v):specialized profile for start-stop vehicle batteries and premium agm applications requiring precise voltage control.
- moto mode (12v):optimized for motorcycle batteries with lower amperage and gentle charging profile suitable for smaller capacity batteries.
- repair mode (12v/24v):pulse charging technology revives sulphated and deeply discharged batteries that standard chargers cannot recover.
Battery maintenance & recovery:
- professional repair capability: the intelligent repair mode uses pulse charging technology to break down sulphation in aged batteries, often recovering batteries that appear completely dead.
Vehicle compatibility:
- universal 12v applications:cars, motorcycles, caravans, boats, and backup power systems using lead-acid, agm, or lifepo4 batteries.
- commercial 24v applications:trucks, buses, heavy equipment, and commercial vehicles requiring professional-grade charging capability.
- battery size range:suitable for 6ah motorcycle batteries up to 300ah truck and marine batteries with appropriate charging time scaling.
What's in the box
1 x SAUTO Smart Battery Charger 12V/24V 20A 7-Stage AGM Lead-Acid LiFePO4
