Kapruka's Coin Cell Batteries sub-section carries button cell and coin cell batteries for watches, calculators, remote controls, hearing aids, and electronic toys. Coin cells are small, flat, round batteries used in devices that require a compact, long-lasting power source. Those wanting rechargeable batteries for everyday devices are at UPS systems. Vehicle batteries are at vehicle batteries.

Coin cell batteries are identified by model codes — common types in Sri Lanka are CR2032 (used in car key fobs, motherboards, and calculators), LR44/SR44 (used in toys, small remotes, and hearing aids), and CR2025 (watches and small electronics). The CR2032 is the most widely needed. When replacing a coin cell, check the existing battery's model number printed on the cell face before buying. Mixing brands is fine for most uses but avoid mixing old and new cells in multi-cell configurations. Power cables and adapters for larger device charging are at power cables and adapters. Drone cameras and tech accessories are at drones.

Coin cells are bought as replacements when devices stop working — the most common need is a dead watch battery or a car remote that stops responding. Kapruka delivers island-wide including remote areas where specific battery sizes may not be available in local shops. Those wanting MP3 and media players for audio device battery needs can also browse MP3 and MP4 players.