LF4100 Portable 12V Lithium Iron Phosphate Battery with 9V Output and 76.8Wh Capacity

This LF4100 portable battery pack delivers versatile DC power for a range of electronics in mobile and off-grid situations. Its lithium iron phosphate (LiFePO4) chemistry provides a stable 12V output alongside 9V and 5V options, making it suitable for powering portable monitors, small LED lighting arrays, camping equipment, and certain camera or video rigs. With a 76.8Wh capacity housed in a compact 168x89.2x43mm casing, it balances useful energy storage with portability, weighing approximately 760 grams. The included 14.6V 1.5A charger and DC connection cables allow for setup and use without needing to source additional accessories.

Features and Construction

The LF4100 battery pack is built around a specific set of electrical specifications and physical dimensions designed for portable application. Its construction focuses on delivering reliable power within defined operating parameters.

Material and Build

The core of this product is its lithium iron phosphate (LiFePO4) battery cells, a chemistry noted in the specifications. This chemistry contributes to the stated service life rating of 2000+ charge cycles. The external casing encloses these cells along with the necessary circuitry to manage charging via the 14.6V input and to deliver the three output voltages: 12V, 9V, and 5V.

Size and Practical Fit

Measuring 168mm in length, 89.2mm in width, and 43mm in height, the battery presents a compact form factor. Its weight of approximately 760 grams means it can be carried in a backpack or equipment bag without adding excessive bulk. This size makes it practical for placement in vehicle glove boxes, camera bags, or alongside portable workstations where space is limited.

Uses and Placement

The combination of multiple voltage outputs and portable design opens up several practical applications, particularly where access to mains power is unavailable or inconvenient.

Event or Professional Use

For photographers, videographers, or field technicians, this battery can serve as a backup or primary power source for equipment like portable field monitors, on-camera LED lights, or data logging devices that accept 12V, 9V, or 5V input. The 5A continuous working current rating indicates it can sustain power delivery to devices drawing up to that amperage. Its operation within a 0°C to +45°C range allows for use in many indoor and mild outdoor environments.

Everyday Home Use

Around the home or for hobbies, this pack can power portable projectors, small soldering irons, or DIY electronics projects requiring a stable DC voltage supply. It can also function as a mobile power bank for recharging other devices via its 5V output, though its primary design is for direct DC connection rather than USB.

Benefits and Buying Value

The value of this battery pack lies in its specific combination of capacity, voltage options, and stated longevity.

Reuse and Low Maintenance

The 2000+ cycle life rating suggests a potential for extended reuse over many charge and discharge periods compared to some other battery types. Maintenance primarily involves following the basic usage instructions: charging with the correct adapter and keeping within the specified temperature limits. No complex battery management is required from the user.

Why Choose This Product

This product is chosen for its concrete specifications: a defined 76.8Wh capacity, three specific output voltages (12V, 9V, 5V), and compact physical dimensions. The inclusion of the necessary charger and two DC cables means it is a complete kit ready for use upon delivery. It serves a clear need for portable, multi-voltage DC power in situations where carrying multiple single-voltage adapters or larger, heavier power stations is impractical.