Updated on January 28, 2024


Created on August 27, 2015

ReadySet Power System

Upcoming Update

The ReadySet Power System is a solar solution that includes a battery system designed to be self regulating.

Developed By
  1. Fenix International
Content Partners


Product Description

The Fenix Readyset developed by Fenix Intl, is a battery system designed to be self regulating, including: internal regulation of high temperatures, overloads, and short circuits. The Readyset includes a solar panel and can be expanded to a maximum capacity of 75W, and can be used to power lights, charge mobile phones, and larger electronics such as LCD TVs. Fenix International is located in San Francisco, California with additional operations in Kampala, Uganda.

This product has been discontinued and replaced by ReadyPay Solar Power System as of 2018.

Target SDGs

SDG 7: Affordable and Clean Energy

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations

Fenix International offers microfinance payment plans for Readysets purchased through MTN in Uganda. In the United States in Canada, the Readyset can be purchased from the Fenix website.

Competitive Landscape

Direct competitors include M-KOPA III Solar Home System.

Manufacturing/Building Method

Mass produced.

Intellectural Property Type

Select Type

User Provision Model

Internet sales to North America at Fenix website Via MTN dealer stores in Uganda. Interview with representative

Distributions to Date Status

60,000 systems as of April 2016

Description of power outputs

2 AC outlets and 2 USB

Description of light points

3 LEDs

Total lighting service (lumen-hours per solar-day)

30 lumen-hours per solar-day

Peak power rating (Wp)

10 Wp – 75 Wp

Battery capacity (kWh; mAh)

3130 mAh

Nominal battery voltage (V)

12 V

Battery type

Lithium Iron Phosphate

User replaceable battery (yes/no)


Remote system diagnostics (yes/no)


Payment structure


Mobile service required (yes/no)


Design Specifications

The ReadySet is a solar charged battery kit. The battery kit itself can be charged by wall outlet, solar panel, or modified to be charged by a user's own power generating device. The basic kits come with one of two solar panels capable of producing 10 watts or 17watts. Additional solar panels can be purchased and added to the system in parallel to produce up to 75 watts with a total of 5 solar panels. The Fenix solar panels are designed to plug-in to the battery system. The battery comes equipped with 2 CLA outputs and 2 USB outlets for charging phones, tablets, computers, and even powering lights and TVs. The battery stores 40 Wh of energy. Dimensions: • ReadySet 8.9”L x 7.2”W x 3.7”H, 2.2lbs • Solar panel 17”L x 11”W x 0.9”H, 3.8 lbs.

Product Schematics

Technical Support

Fenix International provides customer care via telephone at 0800 202 933. User manuals are available in English and Kiswahili.

Replacement Components

Can be obtained by calling Fenix Customer Service line. Solar panels are available separately via the Fenix website (US & Canada).


Fenix products sold in the USA and Canada have a limited 6 month warranty. Product sold in Uganda have a 24 month warranty. Interview with representative

Manufacturer Specified Performance Parameters

Customizable solar array (1-5 panels)

  • Solar Array Voltage: 16-60V
  • Solar Array Power: 5-75W (max 15W per panel).
  • Solar Power Algorithm: Maximum Power Point Tracking (MPPT)
  • AC-DC Electric Wall Adapter
  • Normal Power Brick Voltage: 16-19V
  • Normal Charge Power: 20W
  • Normal Charge Current: Charging is constant power, current will vary based on input voltage
  • High Power Brick Voltage: 20-60V
  • High Charge Power: 30W
  • High Charge Current: Charging is constant power, current will vary based on input voltage

Vetted Performance Status



Be sure to follow proper electrical installation and control guidelines.

Complementary Technical Systems

Fenix Solar 15W Panels and ReadySquid USB Phone Charging Kit.

Academic Research and References

Moreno, A., Bareisaite, A., 2015, Scaling up access to electricity: pay-as-you-go plans in off-grid energy services. Livewire, 24, pp.1-8

Rush, S.C., Wheeler, J., Partridge, A., 2014, Emergency online schools as a means of providing schooling and crisis support after school closings due to catastrophic disasters. International Journal of Emergency Management, 10(3/4), pp 241-258.

Rush, S.C., Wheeler, J., Partridge, A., A proposed template for an emergency online school professional training curriculum. Contemporary School Psychology, 18(2), pp 143-156.

Ayre, J., 2016, Off-Grid Home Solar Provider Fenix International Has Signed 60,000 Leases In Uganda, Cleantechnica

Compliance with regulations

The ReadySet complies with Part 15 of the FCC FCC Rules. The system has been tested and found to comply with the limits for a class B device according to Part 15 of the FCC rules. ICES-003B / NMB-003 B.

Evaluation methods


Other Information

This product has been discontinued and replaced by Fenix's ReadyPay Solar Power System.

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