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12V Battery Charger Maintainer Amp Volt Trickle Smart Universal Multi- Mode Rechargeable Compact Battery Charger Tender Maintainer for Auto Car Truck Motorcycle

<ul><li>Flexible Charging Control: Multi-mode charger with universal input voltage (110-240V) and a complete 3-step charging process including fast charge, constant voltage, and float charge modes.</li><li>Automated Battery Maintenance: Automatically switches to float / maintenance voltage after fully charging the battery, allowing for unlimited connection time.</li><li>Easy Charge Monitoring: Two-color LED indicator shows charging status, with red for charging (steps 1 & 2) and green for full charge (step 3).</li><li>Compact Portability: Compact, lightweight, and portable design (7.2 x 4.7 x 2.7 cm) for easy carrying and use in limited spaces.</li><li>Integrated Safety Features: Protects against polarity inversion, overcharge, and short circuit (LED goes out, charging stops).</li></ul>

<ul><li>1.【TOP QUALITY Material】Solid Construction，Solid housing</li><li>2.【Long Lasting Time】Wire length: 44.5 cm,Connect the Power Line length: 52.5 cm,Package size: 10.5 x 7 x 5 cm,Input Voltage Rating: 110-240V,Maximum Output Power: 15W</li><li>3.【Easy to Carry】Compact, lightweight and portable, easy to carry and use, especially in limited space</li><li>4.【Safety】Automatically switches to float / maintenance voltage after fully charging the battery</li><li>5.【LED indicator】Short circuit protection (LED goes out, charging stops), Charging when the LED is Red, Full Charged when the LED is Green</li></ul>

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Features: <ul><li>Multi-mode charger with universal input voltage.</li><li>Protect against polarity inversion, overcharge and short circuit.</li><li>Complete 3-step charging process – fast charge, constant voltage and float charge mode.</li><li>Automatically switches to float / maintenance voltage after fully charging the battery.</li><li>Solid housing.</li><li>Compact, lightweight and portable, easy to carry t and use, especially in limited space.</li><li>Shorter charging time due to optimized charging process.</li></ul>Descriptions: <ul><li>Two-color charging status LED indicator.</li><li>Comes with clips for easy hook up.</li><li>Best for automobiles, motorcycles, ATVs, personal watercraft, RVs, boats, lawn tractors , etc.</li></ul>3-Step Battery Charging: <ul><li>Step 1: Fast charge mode</li><li>Once the charger is connected to a sealed lead acid battery and plugged in,</li><li>it is in constant current mode with the charge current remaining at its maximum capacity.</li><li>Step 2: Constant voltage mode</li><li>The charger switches to constant voltage mode when the battery is 80-95% charged. It will provide a constant voltage,</li><li>and the charge current decreases to the charge termination level.</li><li>Step 3: Float charge mode</li><li>The charger will switch to this mode when the battery has been fully charged. You can remove the battery from the charger.</li><li>If not, the charger will automatically lower the charging voltage to about 12.6V/cell to compensate for self-discharge.</li><li>The battery can be connected for an unlimited time and when you reconnect the battery, the charging process will return to step 1.</li></ul> Specification: <ul><li>Condition: brand new</li><li>Color: Black</li><li>Quantity: 1 pc</li><li>Size: 7.2 x 4.7 x 2.7 cm / 2.83" x 1.85" x 1.06"(LxWxH)</li><li>Wire length: 44.5 cm</li><li>Connect the Power Line length: 52.5 cm</li><li>Package size: 10.5 x 7 x 5 cm</li><li>Input Voltage Rating: 110-240V</li><li>Maximum Output Power: 15W</li><li>Current Limit: 1A</li><li>Leakage Current: ≤0.25mA</li><li>Recommended Battery Capacity: 12V / 7-10Ah</li><li>Input Frequency: 50-60HZ</li><li>Ripple: ≤120mV</li><li>Efficiency (at 100% load): ≥85%</li><li>Working Temperature: 50°F - 122°F</li><li>Working Humidity: 5% - 95%</li></ul> Package included: <ul><li>1 X Battery Charger   </li></ul> Note: The LED indicator is designed to indicate the charging status. Red appears in step 1&2 and green appears in step 3.

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Not sure what to say about this item as it arrived with Chinese character writing and absolutely no instructions on its specifications or use.

Confused

Not expensive, but it works with the price paid, output current at 1 Watt, so especially for maintaining the battery

Works but really slowly