One of the most affordable batteries for watches and toys is the AG4 battery. This miniature manganese-alkaline element is considered indispensable for some compact electronic equipment. We learn about the most important characteristics of a watch battery and the rules for its selection.
Content
AG4 Battery Specifications
The AG4 battery is found under the markings LR626, LR66. Not everyone understands what these symbols mean. There is an international battery notation system that provides information about the composition. LR - this means that the model is alkaline, and the number “4” indicates its belonging to tablet elements of a specific size.
The main parameters of AG4 include the following parameters:
- view - tablet;
- thickness - 2.6 mm;
- diameter - 6.8 mm;
- type - alkaline;
- capacity - 18 mAh;
- voltage - 1.5 volts;
- weight up to - 1 g.
The shape of the product resembles a tablet. Despite its small size, it has high technical characteristics and excellent energy intensity. Due to the low self-discharge coefficient, the battery will last a long time.
| Parameter | Value |
|---|---|
| Basic designation | AG4 |
| View | Manganese-alkaline element |
| The form | Tablet coin |
| Capacity | 18 mAh |
| Voltage | 1.5 v |
| IEC code | Lr66 |
| Analogue AG4 | Read more HERE |
| Height | 2.6 mm |
| Diameter | 6.8 mm |
| Weight | 1 gr |
Battery Applications
The clock battery is suitable for the following devices:
- mobile devices;
- laser pointers;
- Kids toys;
- calculators;
- Wrist Watch;
- autonomous sensors;
- electronic balance;
- Lantern;
- backup power elements.
AG4 works fine at high temperatures, and when the thermometer reads below 10 degrees, it starts to discharge quickly.
Important! In some cases, it is worth paying attention to the analogues of a miniature battery, which are more resistant to cold.
Analogs of the AG4 battery
A galvanic cell has several analogues:
Most of the characteristics of power supplies are similar, differences can be in indicators such as weight or capacity. Thus, if AG4 is not on sale, the battery can be replaced with any analogue.
Can I charge the AG4 battery
Charging the AG4 with all desire will not work, because it is not a rechargeable battery. However, high performance and affordable price make the battery quite popular. 10 pieces will cost about 100 rubles.
Attention! Buyers are not advised to buy batteries and ordinary watch batteries on cheap Chinese sites. As a rule, such products are sold at an attractive price, and as a result, the consumer receives industrial waste, which, if charged, does not last long.
Popular manufacturers and their features
According to customer reviews, the best manufacturers of such batteries are the following companies:
- GP. It is a popular brand that produces mercury-free watch batteries.
- Camelion. It produces lithium batteries that can withstand temperatures from minus 20 to plus 60 degrees.
- Minamoto. The brand’s catalog contains high quality tablet batteries at affordable prices.
- Defender Judging by customer reviews, the batteries from Defender are of decent quality and are optimally suited for equipment with low and medium power consumption.
- Robiton The company offers a huge assortment of watch batteries, including alkaline button elements.
- Space. Power supplies from the domestic company Cosmos are optimally suited for watches and toys.
- Rexant Products from Rexant are famous for their affordable price and reliability.
- Smartbuy Batteries from this brand are not suitable for multifunctional and powerful devices, but their price is one of the cheapest.
- Videx. Buyers consider brand products to be relatively durable and inexpensive.
The batteries of these brands are quite affordable and have good quality.
What to look for when purchasing
First of all, you need to understand whether AG4 is suitable for the necessary equipment. To do this, it is better to go to the store, taking with you an old battery.
Next, you need to pay attention to the following parameters:
- degree of self-charging;
- dimensions;
- capacity;
- power;
- voltage;
- temperature condition.
If a galvanic cell is ideal for watches, then a more powerful source may be needed for car alarms. Important conditions are the service life and integrity of the battery packaging.
