Deep Cycle Marine Battery

Ampere Time APT-24V100AH 24V 100Ah LiFePO4 Deep Cycle Lithium Battery

Ampere Time APT-24V100AH battery is a deep cycle lithium battery based on the Lithium Iron Phosphate (LiFePO4) chemistry, featuring a nominal voltage of 24V and a nominal capacity of 100Ah.

As such, Ampere Time APT-24V100AH battery is very often used in various automotive, marine, and even light industrial applications that require lightweight and reliable 24V or 48V power sources, like trolling motor battery, inverter battery, in electric vehicles, off-the-grid applications, as RV house battery, etc.

Published: September 16, 2021.

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Ampere Time APT-24V100AH Battery Features and Specifications

Ampere Time APT-24V100AH battery features physical dimensions of 20.5 x 9.37 x 8.54 inches (~52.1 x 23.8 x 21.7 cm) and is often labeled as BCI Group 4D battery.

However, physical dimensions of the BCI Groups 4D and 6D are:

- 4D: 52.7 x 22.2 x 25.0 cm,

- 6D: 52.7 x 25.4 x 26.0 cm,

making Ampere Time APT-24V100AH battery practically 6D and not 4D battery - anyway, whenever looking for a new battery, always check its actual dimensions and the terminal type and orientation, just in case.

Ampere Time APT-24V100AH battery features M8 terminals, ensuring a firm connection between the battery and connecting wires.

Ampere Time APT-24V100AH battery features a nominal voltage of 24V but the actual voltage is 25.6 volts, allowing the battery to support loads up to 2560W, almost regardless of the battery's charge condition.

The nominal capacity of the battery is 100Ah and it is practically unaffected by discharge current.

Ampere Time APT-24V100AH battery supports maximum continuous discharge current of 100 Amps and maximum 5 seconds current of 280 Amps - all of this from 47.4 pounds (~21.5 kg) battery.

The battery also features the built-in Battery Management System (BMS) that protects the battery from most common unwanted events like low/high voltage, low/high temperature, short-circuit, and similar.

BMS also allows the Ampere Time APT-24V100AH battery to be connected in series (up to 2 - for 48V battery packs) and in parallel (up to 4 - for 400Ah battery packs).

The whole battery is designed and built to have IP65 dust and water protection and can be mounted in virtually any position.

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According to the manufacturer, Ampere Time APT-24V100AH battery can withstand 4000-8000 charging/discharging cycles depending on the Depth of Discharge (DoD%), which is ~10x better than the AGM/Gel-Cell lead-acid batteries.

How to Charge Ampere Time APT-24V100AH Battery?

The maximum charging current of the Ampere Time APT-24V100AH battery is 100 Amps, allowing the user to recharge the battery rather fast.

Personally, in order to prolong the life of this and similar batteries, it is recommended to keep the charging current to 0.5C or less - 50 Amps or less.

The charging voltage should be 28.8±0.4V (but not more than 30V!) - the battery should be charged using lithium battery chargers (using mains power or power provided by power generators), lithium battery charge controllers (via solar panels), or using advanced AGM battery chargers featuring dedicated lithium battery charging mode (again, using mains power or power provided by power generators).

aims con120ac1224dc

One of the most popular 24V lithium battery chargers is the AIMS Power CON120AC1224DC battery charger that can charge 12V and 24V AGM, Gel-Cell, and lithium batteries with currents up to 75 Amps @12V and 37.5 Amps @24V.

AIMS Power CON120AC1224DC battery charger features 4 pre-programmed charging algorithms which are set via dip switches. Also, it autodetects the DC voltage (12V or 24V), accepts a broad range of input voltages (70V - 145V AC), and features high AC to DC energy efficiency.

For more features and specifications, feel free to follow the AIMS Power CON120AC1224DC Amazon link (link opens in the new window).

Ampere Time APT-24V100AH Battery As An Inverter Battery

Ampere Time APT-24V100AH battery is able to provide 100 Amps continuously and up to 280 Amps for 5 seconds, with an actual voltage between 21.6 (low voltage cutoff) and 25.6 volts.

That means that in the worst-case scenario, Ampere Time APT-24V100AH battery is able to provide at least 2160 watts continuously and at least ~6050 watts for 5 seconds, making a single Ampere Time APT-24V100AH battery an excellent choice for 24V 1500W power inverters.

Note: power inverters are labeled using their output power. 1500W power inverter with 80% efficiency requires ~1900 input watts. Fully charged Ampere Time APT-24V100AH battery is able to provide 2560 watts continuously most of its discharge time, supporting 2000 watts power inverters with 80% efficiency, but just in case, always calculate "worst-case scenario".

If stronger power inverters must be supported, Ampere Time APT-24V100AH battery can be connected in series to create a 48V battery pack and in parallel to create a battery pack with a capacity of up to 400Ah - up to 2 in series and up to 4 in parallel.

Ampere Time APT-24V100AH Battery As A Trolling Motor Battery

24V electric trolling motors usually feature thrust levels between 60 and 100 pounds (if force can have values in mass units, but that is another story) and maximum current draws around 40-60 Amps, rarely more.

If 24V 50 Amps electric trolling motor is powered by Ampere Time APT-24V100AH battery and if it is used at full throttle, Ampere Time APT-24V100AH battery can power such electric trolling motor for almost two hours.

Since electric trolling motors are rarely used at full throttle all the time, the actual runtime of this combination is usually much longer.

These two examples just show the versatility of the Ampere Time APT-24V100AH battery that can be used in various deep-discharge cycle applications - just be sure to charge it properly, just like any other similar lithium battery.


amperetime apt 24v100ah mLong Story Short: Ampere Time APT-24V100AH battery is designed to be a reliable, vibration-resistant lithium battery supporting a large number of charging/discharging cycles, being able to provide 100 Amps continuously and 280 Amps for 5 seconds, can be mounted in any position, it is a maintenance-free and spill-proof battery, etc.

24V lithium batteries can be replaced by a pair of similar batteries connected in series, but that requires additional cabling and connections, can cause imbalances among the batteries, etc. - and a single 24V lithium battery can solve all of that.

For more reviews and recommendations, feel free to check the Ampere Time APT-24V100AH Battery Amazon link (link opens in the new window).



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