AG4 / LR626 Batteries
Filter
Clear filter
AG4 / LR626
Device ran out of power and you specifically need an AG4 / LR626 battery? This small Alkaline button cell is perfectly suited for classic quartz watches, ensuring reliable daily operation.
Advantages of VIDEX flat batteries:
- Pazīstama arī kā (analogi): LR626, 377, SR626SW.
- Stable 1.5V voltage output throughout its lifespan.
- "Anti-leak" protection guarantees that acid won't leak and damage your delicate equipment.
- Secure blister packaging to prevent accidental swallowing (crucial for homes with kids).
Don't overpay for watchmaker services - replace it yourself. Buy affordably at open tools!
Q: What are the dimensions of the AG4 / LR626 battery and its typical application in analog watches?
Q: Why is it economically justified to use an alkaline LR626 battery instead of silver oxide SR626SW in simple quartz watches?
Q: How does an AG4 (LR626) battery behave in children's shoes with built-in flashing LED lights?
Q: Is it acceptable to replace an AG4 battery with bare fingers inside a wristwatch housing?
Q: How does the alkaline AG4 (LR626) behave under the influence of low temperatures when worn on the wrist in winter?
A: The physical parameters of the AG4 (also known as 377A) are 6.8 mm in diameter and 2.6 mm in thickness, providing around 18 mAh capacity. It is one of the most common alkaline batteries in everyday men's and unisex analog wristwatches featuring a 3-hand (hours, minutes, seconds) quartz mechanism.
Q: Why is it economically justified to use an alkaline LR626 battery instead of silver oxide SR626SW in simple quartz watches?
A: Basic analog watches (without additional dials or backlighting) draw a continuous microampere load for the stepper motor. The VIDEX LR626 battery discharges very gradually, providing sufficient voltage and mechanism accuracy (for years) at a lower price, eliminating the need for expensive High-Drain elements.
Q: How does an AG4 (LR626) battery behave in children's shoes with built-in flashing LED lights?
A: The piezo-response sensors in flashing shoes activate the LEDs at every step impact, creating a micro-pulse load. The thin AG4 battery can promptly compensate for these current peaks and restore voltage; moreover, its dense steel cover withstands the daily mechanical shocks of walking.
Q: Is it acceptable to replace an AG4 battery with bare fingers inside a wristwatch housing?
A: It is strictly forbidden, as hand sweat forms an invisible film on the 6.8 mm battery surface, which drastically increases contact resistance (micro-ohmic resistance). Watchmakers use anti-magnetic tweezers (plastic or titanium) to insert the AG4, ensuring maximum contact cleanliness and preventing short circuits between the casing and mechanism.
Q: How does the alkaline AG4 (LR626) behave under the influence of low temperatures when worn on the wrist in winter?
A: When worn in a watch format, the metal casing is continuously heated by the body (around 25-30°C internally). However, if the watch is taken off and left in the cold (below 0°C), alkaline electrolyte conductivity decreases and voltage drops, so the quartz motor may under-rotate the gear, causing a time lag.
