LF4100 Compact 12V/9V/5V Lithium Iron Phosphate Battery with 76.8Wh Capacity and 2000+ Cycle Life

This LF4100 model is a portable power supply unit built around lithium iron phosphate (LiFePO4) battery chemistry, designed to deliver a 76.8Wh energy capacity in a compact form factor. Its primary function is to provide selectable DC output voltages of 12V, 9V, and 5V to power compatible electronic devices, tools, or systems requiring a mobile or backup power source. The unit is characterised by its small physical volume of 168mm by 89.2mm by 43mm and a weight of approximately 760 grams, making it suitable for applications where space and portability are key considerations. It is supplied complete with a dedicated charger and connection cables, ready for use within its specified operational parameters.

Features and Construction

The LF4100 combines a specific battery technology with practical output features in a contained package. Its design focuses on delivering usable power from a relatively small enclosure, with connectivity facilitated by included adaptors.

Material and Build

The core power source uses lithium iron phosphate battery cells, a chemistry noted in the specifications for its contribution to the stated service life of over 2000 charge cycles. The external housing dimensions define the product's compact footprint, while the internal construction supports the listed continuous working current of 5 amps. The build integrates the necessary circuitry to provide the three fixed output voltage options.

Size and Practical Fit

With external measurements of 168 millimetres in length, 89.2 millimetres in width, and 43 millimetres in height, the battery presents a small volume profile. This size, combined with a mass of around 760 grams, allows it to be easily transported, stored in limited spaces, or integrated into mobile setups. The physical form factor is a central practical feature for users prioritising a minimal footprint for their auxiliary power needs.

Uses and Placement

The battery's configurable output and portable nature support a range of applications, from professional fieldwork to domestic preparedness. Its utility is defined by its electrical specifications and the accessories provided.

Event or Professional Use

For professional, event, or outdoor use, the battery can serve as a power source for equipment such as portable monitors, small-scale lighting, diagnostic tools, or communication devices that operate on 12V, 9V, or 5V DC input. The 5A continuous current rating indicates its capability to support devices with moderate power draw. Its operation within a 0°C to +45°C range allows for use in various environmental conditions, though not in extreme cold or heat beyond these limits.

Everyday Home Use

In a home or hobbyist context, this unit can function as a backup power supply for routers, security cameras, or other low-voltage electronics during short outages. It can also power portable projects, recharge other devices via appropriate converters, or serve as a mobile power bank for DIY tools. The inclusion of two DC cables (DC4017 to 5521 and DC5521 to 5521) provides basic connectivity options for common DC power connectors.

Benefits and Buying Value

The value proposition of this battery centres on its specific technical attributes, longevity claim, and out-of-the-box usability, rather than unspecified premium qualities.

Reuse and Low Maintenance

The specified 2000+ cycle service lifespan suggests potential for extended reuse over time compared to some battery types with lower cycle counts. This longevity, coupled with the stable nature of lithium iron phosphate chemistry, may reduce the frequency of replacement. Maintenance is minimal, primarily involving using the correct charger and operating within the given temperature and current limits.

Why Choose This Product

This product is a relevant choice for users seeking a compact, ready-to-use portable battery with multiple fixed voltage outputs and a stated long cycle life. Its value lies in the concrete combination of 76.8Wh capacity, three output voltages, included charging accessories, and a small 168x89.2x43mm size. It addresses the need for a specific, transportable DC power source without requiring the user to source separate components like chargers or cables.