Replaces original part numbers Compatible replacement for part numbers: 1940653, 1940661, 1942045, 1942053, 1942304. Designed as a direct substitute for the original battery pack. Key specifications Chemistry: Lithiumion (Liion). Voltage: 18.0 V. Capacity: 1500 mAh (27.00 Wh). Size: 114.80 x 74.55 x 65.20 mm. Weight: 525.0 g. Why you need this battery Restores original runtime and performance for devices that require an 18.0 V Liion pack with the listed part numbers. Exact physical dimensions and form factor ensure a secure fit and straightforward replacement without modification. Provides predictable, consistent power output for tasks that depend on steady voltage and capacity. What makes it stand out Multiple builtin protections: overcharge, overcurrent, overvoltage, shortcircuit, and temperature protection reduce risk of damage and improve safety in everyday use. Compact and replaceable design makes it practical for maintenance, minimizing downtime when a battery fails. Rated energy (27.00 Wh) and capacity (1500 mAh) deliver reliable operation consistent with the original specification. Practical features users care about Direct replacement: dropin fit for devices using the listed part numbers. Durable Liion chemistry: good energy density and stable discharge behavior for consistent device performance. Safetyfocused: integrated protection circuits help safeguard both the battery and the connected device. Use scenarios Replacement for a worn or degraded battery in handheld equipment that uses the specified part numbers, restoring runtime for regular tasks. Spare battery for professionals who rely on uninterrupted operation (e.g., field technicians or service personnel) so a charged swap keeps work moving. Backup power for occasional or seasonal devices that sit idle for long periods; replacing an old pack with this Liion unit provides reliable startup and operation when needed. What to expect A battery pack that matches the original electrical and physical specifications and installs without modification. The listed protections help reduce risk during charging and operation, though users should still follow device manufacturer charging and storage guidelines. Specifications (concise) Part numbers replaced: 1940653, 1940661, 1942045, 1942053, 1942304 Chemistry: Liion Voltage: 18.0 V Capacity: 1500 mAh / 27.00 Wh Dimensions: 114.80 x 74.55 x 65.20 mm Weight: 525.0 g Protections: overcharging, overcurrent, overvoltage, shortcircuit, temperature Note: Use this battery as a replacement for devices that specify one of the listed part numbers and follow the device manufacturer's instructions for installation, charging, and disposal.