LR44 VS SR44: Interchangeable?

The IR44 battery is an Alkaline Zinc Manganese button cell battery. The IR44 battery is typically a 1.5 Volt with an operating temperature ranging from 0°C to 60°C, while the optimal temperature is 20°C. The IR44 battery can be utilized in many devices such as watches, motherboards, and a variety of medical devices like thermometers.

LR44 Dimensions

The SR44 battery is a silver oxide button cell featured in several well-known brand-name timepieces. The SR44 battery can also be used to power handheld calculators and other small devices. LR44, AG13, SG13, 357, and a few other cells are direct SR44 battery counterparts. This SR44 design is one of the largest the most common watch batteries, with a case that measures 11.6mm in diameter by 5.4mm in thickness. The output voltage is 1.55V, and the typical capacity ranges from 170 to 200mAh.

SR44 Dimensions

Alkaline LR batteries are less expensive than silver-oxide batteries. However, in terms of life expectancy, silver-oxide batteries outperform alkaline batteries.

    Despite being expensive, silver oxide batteries are better than alkaline. Because Silver oxide batteries have longer shelf life compared to alkaline. For example, silver-oxide batteries provide services up to five years easily, whereas alkaline have two to five years of shelf life. 

When you are using batteries for toys and similar general use applications, LR44 is a better option. Yet, while using batteries for significant applications and devices, such as marine and similar applications, go for SR44 batteries.  

Moreover, silver-oxide batteries have a slightly higher voltage than alkaline batteries. Besides, they have higher cut-off voltage. On the other hand, SR44 batteries have a more stable output voltage. And have a larger capacity in comparison to LR44 batteries. In this regard, you must choose SR44 batteries.  

LR44:

LR44 battery equivalents are also referred to as A76, AG13, L1154, LR1154, and 157. These sizes are possible LR44 battery replacements.

There are other batteries that are similar to the LR44 battery but are different in composition chemistry. The LR44 battery is identical in size, but different in chemistry to silver oxide button cells such as SR44, SR44SW, 303, 357.

Although batteries can fit into each other's devices fairly easily, it is important to choose the recommended battery type for your device to avoid over/under discharge. Please be sure to double-check the size and voltage of the battery you need, to avoid any issues that can damage your device.

SR44:

LR44, CR44, SR44, 357, SR44W, AG13, G13, A76, A-76, PX76, 675, 1166a, LR44H, V13GA, GP76A, L1154, RW82B, EPX76, SR44SW, 303, SR44, S303, S357, SP303, SR44SW

It's difficult to choose between SR44 and LR44. However, in other circumstances, silver oxide outperforms alkaline. In this way, SR44 may be preferable. Furthermore, silver oxide has a capacity that is 50% to 100% greater than alkaline.

Furthermore, SR44 has a longer lifespan than LR44. Because of its higher capacity, the silver oxide battery's falling voltage is also very slow. LR batteries, on the other hand, are preferable for general applications because of their cheaper cost.

For several of our battery sizes, we carry both Silver Oxide and Alkaline chemistry batteries. So what's the difference between the two (outside of price)? Well, Silver Oxide batteries often have a higher energy density and have the ability to put out a high current for their size. These batteries typically last longer than their alkaline counterparts. These should never be used on a battery charger.

As for alkaline batteries, they are often used for most kinds of batteries and watch batteries are no exception. They have a shorter shelf life compared to silver oxide batteries, but they still last pretty long regardless. They are cheaper to make (hence the smaller cost), the only problem with alkaline watch cells would be that they could potentially leak and could cause corrosion and damage to your watch (or other devices that use these batteries.

LR44 and SR44 are the same physical size. However, the terminal voltage of the SR version is a tad higher (1.55v -v- 1.5v) and its capacity is also higher. There are plenty of devices around that are designed to work with the LR44 battery. Some may work with the SR44 but there is no way to know for sure and trying it is not a good idea.

The LR44 battery is identical in size, but different in chemistry to silver oxide button cells such as SR44, SR44SW, 303, 357. Although batteries can fit into each other's devices fairly easily, it is important to choose the recommended battery type for your device to avoid over/under discharge. Please be sure to double-check the size and voltage of the battery you need, to avoid any issues that can damage your device.