Updated on December 30, 2023


Created on October 5, 2018

Fosera Blue Line PSHS 3000

Upcoming Update

The Fosera Blue Line PSHS 3000 is a plug and play battery box designed to power multiple Fosera lights, radios, cooling fans or mobile phones.

Developed By
  1. Fosera
Tested By
  • Lighting Global
Content Partners


Product Description

Blue Line PSHS 3000 is an autonomous Fosera Pico Solar Home System with 3,25 V and over-charge, deep discharge and over-current protection. It is a plug and play device designed to power multiple Fosera lights, the Fosera radio, mobile phones and MP3-players. Multiple Fosera battery boxes can be interconnected to increase the capacity of the system. This product is also available with Pay-As-You-Go functionality.

The device is engineered in Fosera‘s head office located near Ulm in Illerkirchberg, Germany.

Target SDGs

SDG 7: Affordable and Clean Energy

SDG 12: Responsible Consumption and Production

Market Suggested Retail Price


Target Users (Target Impact Group)


Distributors / Implementing Organizations

Fosera's team is formed by engineers, salespeople and operation managers. Apart from the main production facilities in Thailand (in Bahir Dar) and by 2016, there were operating local assembly lines in India, Mozambique, Kenya (in Naivasha), and Ethiopia (in Pathum Thani) all operating under rigorous German Quality Control and with plans to expand to Liberia.

Competitive Landscape

Direct competitors include M-KOPA IV Solar Home System and Barefoot Connect 620.

Manufacturing/Building Method

Each of Fosera's battery boxes are meant to be custom-bundled with various appliances (lighting, radio, mobile phone charging) and various size PV solar panels depending on the environment in which they're located. Around 100 battery boxes are produced every month. Interview with the represenative Engineered in Fosera's head office located near Ulm in Illerkirchberg in Germany, Fosera has 5 operating assembly lines on 3 continents. The main production factory is in Thailand (in Pathum Thani), followed by India,  Mozambique, Kenya, and Ethiopia all operating under rigorous German Quality Control and with plans to expand to Liberia.

Intellectural Property Type

Select Type

User Provision Model

Directly from Fosera and its subsidiaries in Ethiopia, Kenya, Thailand, and with future expansion plans to Liberia.

Distributions to Date Status

Since it was first launched in 2014, around 4,000 Blue Line PSHS battery boxes have been distributed to date. Interview with the representative Furthermore, Fosera has distributed up to 172.500 systems (including Blue Line PSHS battery boxes, power line LSHS solar home systems, torches and more) mainly in East Africa (125.000 devices), Asia (13.500) South Africa (10.500), Latin America (9.000), West Africa (8.500), Middle East (6.500).

Description of power outputs

1 Radio and 1 mobile phone charging outlet

Description of light points

2 LEDs

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

740 lumen-hours per solar-day

Peak power rating (Wp)

1.5 Wp

Battery capacity (kWh; mAh)

3,000 mAh

Nominal battery voltage (V)

3.25 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

Fosera Blue Line PSHS 3000 is a Lithium Iron Phosphate battery box with 3.25 V of nominal voltage and 3 Ah of system capacity. Its dimensions are 192 x 131 x 45 mm and it weights 0.325 kgs. The recommended module is a crystalline silicon panel with 1.5 Wp of peak power and 0.34 A of module current. The cable from the solar panel to the battery box is 6 m long.

Product Schematics

Technical Support

Plug and play device, no special training required. For support in the system configuration design, contact Fosera sales team.

Replacement Components

This battery box has 3-year warranty covering manufacturing defects. It is easily replaceable with common tools, however, the warranty is void when the product is opened.


Up to 10 years maintenance-free.

Manufacturer Specified Performance Parameters

Fosera is working for bringing power to Africa, Asia and Latin America with clean, sustainable and affordable solar energy systems and solutions what fit users need.

Vetted Performance Status

When connected to the 1,8 Wp polycrystalline silicon module, the battery box powers the 100 Illuminance Fosera lamp for 14 hours and the 50 Illuminance lamp for 32 hours. Per day of solar charging, it is 7,6 hours for the 100 lm lamp and 18 hours for the 50 lm lamp, resulting in a total light output of 97 and 39 lumens, respectively. Total lightning service for this product is 740 lumen-hours/solar-day for high brightness setting (100 lm lamp) and 700 lumen-hours/solar-day for low brightness setting (50 lm lamp).


The battery box is a plug and play device, however, electrical installation and control guidelines provided by Fosera must be followed to avoid electrical shocks.

Complementary Technical Systems

Fosera sells lamps,  Fosera radio and battery boxes that can be connected to the Blue Line PSHS 300 to increase the system's capacity. Fosera calculator app also available to size the system according to the users' need.

Academic Research and References

Lahti University of Applied Sciences., Business opportunities of solar photovoltaic home systems in Vietnam. Case study: Fosera Co., Ltd. Degree program in International Business, thesis. Sept 2013.

Compliance with regulations

This product meets the Lightning Global Quality Standards for Solar Home System Kits.  Valid until the 31st of July in 2019. The units assembled in Ethiopia and Kenya also meet these quality standards.

Evaluation methods

Lightning Global verified the battery durability in the Schatz Energy Research Center in Arcata in USA based in the switch and connector cycling, strain relief test and physical ingress protection test. Water ingress protection was not tested as this product is meant for indoor use only. This battery box meets the Lightning Global Quality Standards for battery durability

Other Information

The PSHS 3000 is the least common battery box style we sell, we more commonly sell the PSHS 7500. Interview with the representative

Fosera Catalog

Video of an introduction to the Fosera Solar Home Systems and PSHS

Fosera Appliances

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