Why is this units output voltage only 14.4 volts per the specs, when other units show, and my battery requires 14.6 volts.

I have had the same concern. I did some research, and apparently any voltage between 14.0 and 14.7 is fine to charge a LiFePo4 battery. But, some sites explain that the ideal voltage is 14.4 because the ideal voltage per cell is 3.6, so multiply that by 4 and you get 14.4 volts. It seems that all the charger companies advertise 14.6 because that is the voltage everyone else is advertising and they don’t want to stick out as being different, or perhaps they don’t want to be thought of as charging at too low a voltage. What does ‘em clear is that if you charge a a slightly lower voltage, then the life of the cell will be longer, though the capacity of storage will also be slightly lower. I think most of us buy these batteries because we want a battery that will last a good long time, so charging at 14.4 volts should be good for obtaining that goal. I hope this helps. I have not purchased this particular charger, but I am going to buy a 14.4 volt charger.

Can you use this on two or three 12v lfp batteries connected in parallel?

Hello! Yes you are definitely able to! Ensure to hook up the positive clip to the positive terminal of the first battery in the set and the negative clip to the negative terminal of the last battery in the set to ensure proper charging!

Will the 20ah model charge a 16ah lifepo4 battery?

Yes, any of the ExpertPower 12V chargers will charge a liefpro4 16Ah battery. It's a matter of how long it will take. The smaller the charger, the longer it will take to fully charge the battery.

Why is the efficiency of 20A charger written 90% here where as Expert Power website says 80%?

Hi there, the charger efficiency is above 90%.

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🔌 Power Up Smartly with ExpertPower!

DURABLE DESIGN - Crafted from premium aluminum alloy for longevity and heat management.
RAPID RECHARGE - Get back to full power in just 2.5 hours—never miss a beat!
UNIVERSAL COMPATIBILITY - Designed for LiFePO4 batteries 40Ah and above, ensuring versatility.
USER FRIENDLY INDICATORS - Smart LED indicators keep you informed at every charging stage.
SMART CHARGING TECHNOLOGY - Experience the future of battery care with our intelligent CC/CV algorithm.

The ExpertPower 12V 20A Smart Charger is engineered specifically for LiFePO4 deep cycle rechargeable batteries, featuring a rapid 2.5-hour charging time, intelligent CC/CV charging algorithm, and robust aluminum alloy construction for optimal performance and longevity.

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Brand	ExpertPower
Manufacturer	ExpertPower
Model	EPC1220
Product Dimensions	10.67 x 6.1 x 16 cm; 1.22 kg
Item model number	EPC1220
Number of items	1
Charging Time	2.5 Hours
Batteries Included	No
Batteries Required	No
Battery cell composition	Lithium
Manufacturer	ExpertPower
Country of Origin	USA
Item Weight	1 kg 220 g

ExpertPower 12V 20A Smart Charger for Lithium LiFePO4 Deep Cycle Rechargeable Batteries

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