Battery Equivalents and Replacements

ECO-WORTHY 12V 50Ah LiFePO4 Group 22NF Deep Cycle Battery

ECO-WORTHY 12V 50Ah LiFePO4 Group 22NF Deep Cycle Battery is a very popular lithium deep cycle battery thanks to its lightweight design, good performances, and affordable price.

ECO-WORTHY 12V 50Ah lithium battery is typically used in mid-range applications, including trolling motor batteries, wheel chair batteries, solar batteries, etc.

Published: August 24, 2023.

 eco worthy lifepo4 12v 50ah 1

ECO-WORTHY 12V 50Ah Lithium Battery Features And Specifications

ECO-WORTHY 12V 50Ah lithium battery is based on Lithium Iron Phosphate (LiFePO4) chemistry, ensuring a large number of charging/discharging cycles, lightweight design, and safe use, thanks to the built-in Battery Management System (BMS), which protects the battery from various unwanted events, including overcharge protection, over-discharge protection, short-circuit protection and overcurrent protection.

Also, BMS ensures that the cells are kept balanced.

The physical dimensions of the battery are (L x W x H) 9.13 x 5.31 x 7.12 inches (~232 x 135 x 181 mm) and it weighs only 10.62 pounds (~4.82 kg) - we say only 12.65 pounds since this battery is able to store >600Wh of energy, and similar lead-acid batteries weigh 35-45 pounds and are not as energy efficient as this battery.

According to the official ECO-WORTHY site, the maximum discharge is 60 Amps, and the maximum charge current is 40 Amps, allowing the battery to be used even in light-industrial applications and to be recharged quickly.

Personally, when charging this and similar lithium batteries, use either a dedicated lithium battery charger or an advanced AGM battery charger that features a dedicated lithium battery charging mode.

For example, if the battery is discharged down to 50% DoD, a 10 Amps battery charger needs less than 3 hours to fully recharge the battery without overstressing it.

noco genius 10

Although there are many suitable battery chargers on the market, one of the most popular is the NOCO GENIUS10 6V and 12V 10A Smart Battery Charger and Maintainer (Amazon link, link opens in the new window).

ECO-WORTHY 12V 50Ah lithium battery can also be recharged using solar panels with lithium battery charging mode, while AC battery charger may be powered my mains power or a power generator.

The charge temperature range is 0°C to 55°C and discharge temperature range is -20°C to 55°C.

A nominal battery voltage is 12.8V, and the charging voltage should be 14.5V. Also, a cutoff voltage of ~10.0V.

ECO-WORTHY 12V 50Ah lithium battery comes with M6 battery terminals, ensuring firm contact with the battery cables.

As a lithium battery, the ECO-WORTHY 12V 50Ah lithium battery is designed to withstand more than 3000 charging/discharging cycles. Also, it is a fully maintenance-free battery that can be mounted in any position, including upside down.

Thanks to the advanced BMS, ECO-WORTHY 12V 50Ah lithium battery supports connecting the batteries in both parallel and series, up to 4P4S.

For example, in series, for battery packs with 24V, 36V, and 48V:

in series

And in parallel, for battery packs with 100Ah, 150Ah, and 200Ah:

in parallel

Note: with 4P4S, ECO-WORTHY 12V 50Ah lithium battery can be used to provide battery packs up to 48V (actually 51.2V) and 200Ah, which can store >9.6kWh of energy.

ECO-WORTHY 12V 50Ah Lithium Battery As Trolling Motor Battery

With its 60 Amps maximum discharge current, ECO-WORTHY 12V 50Ah lithium battery can be used to power trolling motors up to 50lbs of thrust, which draws up to 50-55A.

Personally, to keep things on the safe side, consider 40lbs trolling motors with maximum discharge current up to 40-45 Amps as the maximum for a single ECO-WORTHY 12V 50Ah lithium battery.

When a 40-45 Amps trolling motor is powered at full throttle, an ECO-WORTHY 12V 50Ah lithium battery can power such a motor for more than an hour.

Note: if your trolling motor is powered at full throttle most of the time, it is seriously underpowered, and for safety reasons, it should be replaced with stronger motor.

 ECO-WORTHY 12V 50Ah Lithium Battery As Solar/Power Inverter Battery

ECO-WORTHY 12V 50Ah lithium battery may be used as a power inverter battery, recharged by solar panels, and used in various off-the-grid situations.

A small 120-150W solar panel with an average 60% efficiency can fully recharge an ECO-WORTHY 12V 50Ah lithium battery during a single day (let's assume good weather and at least 10 hours of good light).

PSolar = 120W * 0.6 = 72W = 14.5V * 5A

Also, an ECO-WORTHY 12V 50Ah lithium battery may be used to power a 500W power inverter with 90% energy efficiency:

PBat = 500W / 0.9 = 555W = 12V * 46.3A

However, if there is a short surge, the BMS may disconnect the battery to prevent it from getting damaged.

Thus, although ECO-WORTHY 12V 50Ah lithium battery can be used to power 500W power inverter, just to be sure, use it for power inverters up to 250W continuous and 500W surge.

Again, if you need more power, connect two or more ECO-WORTHY 12V 50Ah lithium batteries in parallel/series as the manufacturer recommends.


eco worthy lifepo4 12v 50ah mLong Story Short: ECO-WORTHY 12V 50Ah lithium battery is a very popular Group 22NF lithium battery; it is well designed and built, it performs well, it is reliable, and in the end, it is an affordable battery.

For more reviews and recommendations, feel free to follow the ECO-WORTHY 12V 50Ah LiFePO4 Group 22NF Deep Cycle Battery Amazon link (the link opens in the new window).