AG0 LR521 1.55V Button Cell Battery for Watch, Calculator, Car Key - 1/5/10/20/50/100PCS

Product Description

AG0 LR521 1.55V alkaline button cell battery is designed for small electronic devices such as watches, calculators, car key fobs, small toys, mini LED lights, compact remote controls, electronic thermometers and other low-power devices.

This battery is also commonly searched as AG0, LR521, LR63, SR521SW, SR63, 379, 379A or watch button cell battery. It is suitable for customers who need a compact 1.55V replacement battery for daily-use electronic devices.

The product is available in 1PCS, 5PCS, 10PCS, 20PCS, 50PCS and 100PCS package options, making it suitable for home backup, watch repair, calculator replacement, retail reselling and bulk purchase use in the EU market.

Key Features

• AG0 / LR521 / LR63 / SR521SW / 379 compatible button cell battery
• 1.55V alkaline battery for watches, calculators, car keys and small electronics
• Compact button cell size for low-power electronic devices
• Available in 1PCS, 5PCS, 10PCS, 20PCS, 50PCS and 100PCS pack options
• Suitable for personal replacement, repair shops, small resellers and bulk buyers
• Easy to store as backup batteries for home, office or repair use
• Non-rechargeable alkaline button cell battery, ready to use

Product Specifications

Compatible Applications

This AG0 LR521 1.55V button cell battery is suitable for many small electronic products, including watches, calculators, car key fobs, small toys, mini LED lights, compact remote controls, electronic thermometers, small meters and other low-power devices.

Before purchasing, please check the original battery model, voltage, size and polarity of your device. If your device uses AG0, LR521, LR63, SR521SW, SR63, 379 or 379A batteries, this product can usually be used as a replacement.

Package Options

• 1PCS - suitable for single replacement use
• 5PCS - suitable for home backup use
• 10PCS - suitable for regular daily replacement
• 20PCS - suitable for watch repair or small shop use
• 50PCS - suitable for bulk users and resellers
• 100PCS - suitable for wholesale, repair shops and long-term stock

Safety Notes

• This is a non-rechargeable alkaline button cell battery. Do not recharge.
• Do not short-circuit, disassemble, crush, puncture or expose the battery to fire.
• Keep batteries away from children and pets.
• Insert the battery according to the correct positive and negative polarity.
• Do not mix old and new batteries in the same device.
• Store in a dry, cool place away from direct sunlight and moisture.
• Please confirm the battery model, voltage and size before purchase.

FAQ

Can this AG0 battery replace LR521, LR63, SR521SW or 379?

Yes. AG0 is commonly compatible with LR521, LR63, SR521SW, SR63, 379 and 379A button cell batteries. Please confirm the voltage, size and device requirement before purchase.

Is this AG0 LR521 button cell battery rechargeable?

No. This AG0 LR521 1.55V alkaline button cell battery is non-rechargeable. Do not charge it.

Can this battery be used for watches?

Yes. This AG0 / LR521 / 379 button cell battery is commonly used for watches and other small electronic devices that require this model and size.

Can it be used for calculators and car keys?

Yes. It is suitable for calculators, car key fobs, small remote controls, toys and mini electronic devices that require AG0, LR521, LR63, SR521SW or 379 batteries.

Which package options are available?

This product is available in 1PCS, 5PCS, 10PCS, 20PCS, 50PCS and 100PCS package options.

What should I check before buying?

Please check your original battery model, voltage, size and polarity. Make sure your device requires AG0, LR521, LR63, SR521SW, SR63, 379 or 379A type button cell battery.