The CR2 and CR123 are both 3V lithium batteries, but the CR2 is smaller (15.6mm x 27mm) with 800mAh capacity, suited for low-drain devices. The CR123 (17mm x 34.5mm) has a higher capacity (1500mAh), ideal for high-drain devices like flashlights. Though both have the same voltage, the CR123 lasts longer. They’re not interchangeable due to size differences.

The AG1 battery (LR621) is a small, non-rechargeable coin cell used in devices like watches and calculators. It comes in alkaline (shorter lifespan) and silver oxide (longer lifespan, stable voltage) versions. This guide compares both types, their equivalents, and offers troubleshooting tips. Silver oxide is best for precision devices, while alkaline is ideal for low-power applications.

The LR44 alkaline (1.5V) and 357 silver oxide (1.55V) button cells share the same size but differ in chemistry, capacity, and stability. This guide compares specs, lifespan, performance, interchangeability, and tips to choose the right battery for your device.

CR2450 is a 3V lithium coin cell (24.5×5.0 mm, 500–620 mAh). Equivalents include CR2450N, DL2450, BR2450, LM2450, and ECR2450. Always match size, voltage, and chemistry.

CR2025 and CR2032 are both 3V lithium coin batteries with the same 20 mm diameter but different thickness and capacity. CR2025 is 2.5 mm thick with 150–170 mAh, ideal for slim, low-drain devices. CR2032 is 3.2 mm thick with 210–240 mAh, lasting longer in higher-drain devices.

The BC548 is an NPN-type bipolar junction transistor (BJT) that is often used in low power amplification, switching circuits and oscillators.

The CR2354 is a 3V lithium coin battery used in watches, key fobs, and medical devices. Explore its specs, top equivalents like DL2354 and ECR2354, and how to choose, handle, and troubleshoot the best CR2354 replacement for your device.

The H6 battery, also known as Group 48, is a 12-volt automotive battery commonly used in cars, trucks, and SUVs. Learn about its features, applications, and top replacement options in 2025. Find the best H6 battery equivalents and ensure compatibility for your vehicle.