Complete guide how to connect your Solar panels with Lithium (Lithium Iron Phosphate, LiFePO4) batteries. We are using MPPT Regulator for maximal power drawn from the Solar panels.
You will learn how to connect the cables, how to operate with the regulator and how to connect the battery itself.
Links and references:
Winston LiFePO4 cells:
Micro Energy Storage Setup
NOTE: this is a grid-tied system setup with an energy back up to the batteries. This system is grid-tied only. The micro-inverter works only when the grid is present. If the grid is down, the system does not work. It is NOT an off-grid system.
NOTE (2019 update): the illustrational picture shows a system we made in 2013 with some components which are no longer available (like the 36V regulator). We've nevertheless updated the list of components below so you can make the same system with components which are up to date and available in our e-shop.
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A practical realization of a small size energy storage solution with 3.2 kWh of energy capacity with 230V/230W AC grid-tied power output. The basic concept of energy storage with easy expansion. The purpose of the installation is to store the energy in the batteries and release the energy slowly when needed.
Components description of the complete setup
A combined Energy Solution - Alfons Container
GWL/Power supplied the Winston Battery cells for the integrated hybrid energy solution called“Container Alfons”. This solution integrates the energy from three sources - solar, wind and a backup diesel generator.
Be sure to contact GWL/Power for more details and for the reference to this and similar projects.
New extension accessory current sensor forLAN Controller 2.0is available for your projects -. It allows to measure up to +/- 75A in circuits up to 277V AC/DC. Check our offer of. Follow the pictures for complete installation and setup instructions.
Please note you have to always connect the batteries first to the solar regulator then the solar panels and load.
The solar regulator should be demaged If you connect the solar panels before the bateries.
Switch off the solar panels first, Load after and the batteries as last if you need to disconnect the solar regulator from the whole system.
A solar powered ebike - possible?
I wish to make an ebike powered by solar panels in the wheel. What do you think about this?
It is a nice idea. We are always happy when our customers bring about some innovative ideas.
For the solar panels in the wheel (as suggested by the picture) we come to this calculation:
A simple off-grid installation (customer photo)
Making a solar installation is easy. Just 4 components needed: 1) solar panel(s), 2) the solar charge regulator, 3) the battery and the DC/AC inverter.
GWL/Power has supplied and the .
What is correct: the panels (80Wp small size panels) have the MPPT voltage approx 10V, this means two panels must be in series to get the voltage above the battery voltage (some 15V at max charge).
What is wrong:1) there is no DC fuse on the battery…. whoops …. 2)shame on the shading: the panels are shaded by the solar cables and also by the battery. This is simply wrong…. the panels will not provide full power potential. Always avoid shading of the panels.