Tool Reviews

Remote controls, flashlights, clocks, interactive toys, and other gadgets used by modern people often run on batteries. The most popular format is AAA. Finger batteries 4.46 cm long and 1.05 cm in diameter have this marking. The generated voltage is 1.5 V, and the capacity reaches 1200 mAh. The quality of the functioning of the device, which works on its charge, depends on the battery. Therefore, the acquisition of batteries should be given maximum attention. This will avoid buying low-quality and even dangerous goods.

How to choose AAA batteries

A finger battery has a clear principle of operation: inside it is a capsule with an electrolyte. Due to it, electrons and ions move from the positive electrode (indicated by a plus) to the negative one inside the power source. Thus, an electric current is generated, and the charge source functions. Over time, the electrolyte is depleted and ceases to generate a full current, so batteries need to be replaced.

In order not to make a mistake when buying batteries, you need to know by what parameters they are chosen.

• Composition (electrolyte type). Salt ones are considered the least powerful, so they are purchased for remote controls, calculators, timers and other devices that are compatible with low-charge current sources. Salt food sources have a limited shelf life – only 1-2 years. Alkaline cope with more intense loads, so they are bought for interactive toys, players, kitchen scales. Such batteries are characterized by a more powerful charge and a long service life. Lithium cells are the most reliable because they generate powerful pulses. Batteries of this type are suitable for tonometers and film cameras.
• Service life – according to this parameter, products are divided into disposable and rechargeable. The latter can be charged from the power supply. The charger comes with batteries or is sold separately. One battery can charge 2 to 4 AAA batteries. Rechargeable batteries are divided into nickel-cadmium and nickel-ion.
• Scope – AAA batteries are selected depending on the application. For devices with low power consumption, they buy saline batteries with a capacity of up to 0.8 A. Such power supplies are suitable for wall clocks, floor scales, remote controls, etc. Computer mice, musical toys, film cameras are suitable for power supply of 1.5-3.2 A. Alkaline models have such indicators. For small-sized medical equipment and devices operating in harsh weather conditions, powerful lithium batteries are needed.
• Composition safety – when buying AAA-labeled products, carefully study the composition of the goods. Mercury, cadmium and other toxic metals are not used in certified batteries.
• Recommended ambient temperature – if the buyer is looking for batteries that operate at temperatures below 0 degrees, then in this case they purchase lithium batteries.
• Tightness – the case must be intact, without any mechanical damage. A leaky product can be hazardous to health. If the product has been in the store for a year, then its capacity is already 10-20% less than the initial one.
• Manufacturer. Do not buy AAA batteries sold under an unknown brand, as they may contain toxic substances.
• The quality and tightness of the packaging – when buying batteries, pay attention to the integrity and appearance of the packaging that protects the product from moisture, direct sunlight and other negative environmental factors. It is not recommended to purchase batteries individually and in open packaging.

The secondary characteristics of the purchased product include its design, because the appearance of the product does not affect its functionality.

The best AAA rechargeable batteries

The best option among AAA cylindrical batteries is Duracell HR03. This is a nickel-metal hydride battery with a voltage of 1.2 V and a capacity of 850 mAh. The battery is purchased for devices with high power consumption. The power supply is recharged several dozen times, which increases the service life. In the first year of use, the battery loses no more than 20% of its capacity. It is purchased for the uninterrupted operation of radio telephones, cameras, blood pressure monitors and other equipment that intensively consumes a charge.

Battery chargers of this model must not be used simultaneously with power sources of other types and manufacturers. The product can be used immediately after opening the blister, as the battery has a full charge.

Characteristics

• type (size): AAA;
• parameters: 1.05 * 4.45 cm;
• voltage: 1.2V;
• type depending on the composition of the electrolyte: alkaline (nickel-metal hydride);
• capacity: 850 mAh;
• shelf life: up to 5 years.

pros

• quality guaranteed by the leading manufacturer of power supplies;
• long shelf life;
• slow loss of capacity during a year of storage;
• 100% tightness;
• no toxic elements in the composition.

There are no significant flaws in the product.

The best AAA lithium batteries

Brand Lithium Batteries “Energizer” – the best alkaline power sources with a voltage of 1.5 V. With proper storage, the product can be sold for up to 20 years, according to the manufacturer. The leak-proof sealed case allows the batteries to be used even at extreme ambient temperatures.

Therefore, the Energizer is suitable for walkie-talkies, radios and other equipment that is operated outdoors in frosty weather. A feature of the model is its low weight, thanks to which they can be used as a power source for small gadgets, for example, computer mice.

Characteristics

• type (size): AAA;
• parameters: 1.05 * 4.45 cm;
• voltage: 1.58V;
• type depending on the composition of the electrolyte: lithium;
• capacity: 850 mAh;
• shelf life: up to 20 years.

pros

• long shelf life;
• stable charge until the final discharge, which guarantees uninterrupted operation of devices;
• reinforced housing tightness;
• over 500 minutes of work.

Minuses

• not suitable for gadgets with low battery consumption;
• high price.

The best AAA alkaline batteries

Alkaline battery models LR03 Stamina Platinum from the manufacturer Sony are considered the best power supplies among this category. Suitable for gadgets with high performance. They have a voltage of 1.5 V, and this is enough for the uninterrupted operation of technical devices. The shelf life, subject to storage conditions, reaches 10 years, which is considered a high indicator among alkaline food sources.

They are characterized by impeccable tightness of the case and a safe composition. Suitable for outdoor use. Withstand sub-zero temperatures.

Characteristics

• type (size): AAA;
• parameters: 1.05 * 4.45 cm;
• voltage: 1.5V;
• type depending on the composition of the electrolyte: alkaline;
• capacity: 850 mAh;
• shelf life: up to 10 years.

pros

• provides power supply to devices requiring high-frequency current;
• reliable body;
• works without interruption to zero charge;
• suitable for outdoor use;
• the blister protects products from moisture and the sun.

There are no cons among the features of this product.

The best AAA alkaline batteries

Duracell Basic LR03BL – the best option among alkaline models. This is a reliable power supply that meets all safety criteria. An excellent option for a charger used for the uninterrupted operation of home appliances: remote controls, inertial toys, watches, portable gaming gadgets and other devices of frequent use.

New batteries are safely stored for 10 years without losing their charge, thanks to the innovative Duralock technology. They have a standard voltage of 1.5 V for alkaline batteries.

Characteristics

• type (size): AAA;
• parameters: 1.05 * 4.45 cm;
• voltage: 1.5V;
• type depending on electrolyte composition: alkaline;
• capacity: 850 mAh;
• shelf life: up to 10 years.

pros

• provides power supply to devices requiring high-frequency current;
• reliable body;
• works without interruption to zero charge;
• long shelf life in a new state;
• innovative Duralock technology.

Minuses

• not suitable for high power consumption applications.

The best cheap AAA batteries

If the buyer is looking for high-quality, but inexpensive sources of charge, then Promega Jet LR03 would be the best option. The model contains an alkaline electrolyte that maintains a voltage of 1.5 V. A high capacity indicator (1150 mAh) contributes to the stable maintenance of the charge necessary for the operation of devices of average power consumption.

Due to the sealed housing, the probability of electrolyte leakage is minimal. The shelf life is 7 years. The composition of the products does not contain metals hazardous to health (mercury, cadmium and others), which cannot be said about most cheap models. Products are hermetically packed in a blister, so they are protected from moisture.

Characteristics

• type (size): AAA;
• parameters: 1.05 * 4.45 cm;
• voltage: 1.5V;
• electrolyte: alkaline;
• capacity: 1150 mAh;
• shelf life: up to 7 years.

pros

• an inexpensive but reliable source of energy for most household appliances;
• tight;
• safe composition;
• seven-year implementation period;
• convenient and reliable blister.

There are no serious shortcomings in the budget model Promega Jet LR03.

Best AAA rechargeable batteries with charger

Batteries with a charger are a convenient device characterized by reusable use. The best batteries included with charging are offered by the manufacturer Duracell. The CEF14 charger is suitable for AA and AAA batteries. The device is mains operated. It takes only 45 minutes to fully charge the 570 mAh power supply elements, while a full charge is enough for 4 hours of uninterrupted operation of technical devices.

Characteristics

• type (size): AAA and AA;
• works from the network;
• service life: up to 5 years.

pros

• a safe device that will help save on the purchase of charge carriers for home appliances;
• equipped with 4 batteries (2 AAA and 2 AA);
• fast charging;
• multi-level system of safe operation;
• compact dimensions.

Minuses

• Not compatible with other brands of batteries
• Charges media up to a maximum of 850 mAh.

High-quality finger batteries combine safety and reliability, ensuring the uninterrupted operation of home gadgets, from children’s toys to blood pressure monitors.

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