Battery Equivalents and Replacements

Weize 12V 10Ah Lithium LiFePO4 Deep Cycle Battery

Weize 12V 10Ah Lithium LiFePO4 Deep Cycle Battery is a compact and lightweight battery intended to replace 12V 7Ah wet/flooded, Gel-Cell and AGM lead-acid batteries in applications requiring no more than ~100 Running Watts and ~200 Starting Watts.

It can be used as an excellent fish finder battery, electric vehicle/toy battery, small inverter battery, solar battery, and similar, supporting a very large number of charging/discharging cycles (2000+), saving money in the long run.

Published: March 7, 2022.

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Weize 12V 10Ah Lithium Battery Features and Specifications

Weize 12V 10Ah lithium battery is based on the very safe Lithium Iron Phosphate (LiFePO4) chemistry and features physical dimensions of (L x W x H) 5.94 x 2.56 x 3.7 inches (~151 x 65 x 95 mm) and it weighs just 3.03 pounds (~1.38 kg).

As such, Weize 12V 10Ah lithium battery is commonly used as a replacement for lead-acid 12V 7Ah batteries in various applications (if possible due to the charging and discharging conditions of the application/device).

The nominal voltage of the battery is 12.8V and a nominal capacity is 10Ah, allowing the relatively small battery to store 128 Wh of energy.

The standard charging current is 2 Amps (0.2C), while the maximum charging current is 10 Amps (1.0C), with a charging voltage of 14.4V and 14.6V maximum.

The battery is protected by the built-in Battery Management System (BMS) that protects the battery from various unwanted events, including high/low voltage, and too strong charging/discharging current.

While the battery can be recharged with various battery chargers (except lead-acid batteries with desulphation charging mode) as long as the charging voltage is kept below 14.4V (14.6V max.) and the charging current is kept below 10 Amps (1.0C), it is highly recommended to charge the battery with a dedicated 2 Amps lithium battery charger, or similar advanced AGM battery charger that features dedicated lithium battery charging mode.

The maximum continuous discharge current is 10 Amps, while the maximum surge discharge current is 20 Amps for 3 seconds, after which BMS disconnects the battery - when the load is removed, BMS automatically connects the battery after 1 second.

The temperature range is 0°C to +45°C for charging and -20°C to +60°C for discharging applications.

Weize 12V 10Ah lithium battery feature a very low self-discharge rate - nonetheless, when storing it, store it at room temperature (~20-25°C) and recharge it every 3-4 months.

As a lithium battery, Weize 12V 10Ah lithium battery supports a very large number of charging/discharging cycles depending mostly on the depth of discharge and charging/discharging currents and temperature.

When the battery is used and charged at room temperature using ~0.2C (~2 Amps) currents, the battery can withstand at least 2000 cycles down to 100% DoD and at least 8000(!) cycles down to 50% DoD.

No wonder the battery comes with a 10(!) year limited warranty.

Weize 12V 10Ah battery comes with a pair of F2 battery terminals - battery terminals are on the right side of the battery with a positive one closer to the front side of the battery.

Note: most applications that use lead-acid 12V 7Ah battery feature wire connectors for F1 battery terminals (somewhat thinner and narrower than F2 battery terminals) and in order to connect the battery with F2 battery terminals to the F1 wire connectors, one needs F2 to F1 battery adapters.

Weize 12V 10Ah battery can be connected in parallel and series, but only as allowed by the manufacturer - up to 4 batteries in series and/or up to 4 batteries in parallel (max. 4S4P configuration), creating a battery pack with a nominal voltage of up to 51.2V and a capacity of up to 40Ah.

Note: batteries must be of the same brand (Weize) and type (12V 10Ah), preferably from the same batch - when connecting lithium batteries in series and/or parallel, always connected them only as recommended by their manufacturer. In short, read the Owner's Guide/Instructions that came with the batteries - things change over time ...

weize 12v 10ah lifepo4 w150pxLong Story Short: Weize 12V 10Ah LiFePO4 battery is an excellent deep cycle battery that can be used for applications up to 120 Running Watts and 240 Starting Watts (for 3 seconds max.).

It supports a huge number of charging and discharging cycles, can be quickly recharged, it is very light and compact, and can lead to gains in performance and reliability when used properly.

For more reviews and recommendations, feel free to check the Weize 12V 10Ah Lithium LiFePO4 Deep Cycle Battery Amazon link (link opens in the new window).