Solar lamp with reused lithium cells

Low-tech Lab

https://wiki.lowtechlab.org/wiki/Lampe_solaire_%C3%A0_batteries_lithium_r%C3%A9cup%C3%A9r%C3%A9es/en

Dernière modification le 13/02/2020

Difficulté

Easy Facile

Durée

2 hour(s) heure(s)

Coût

10 EUR (€)

Description

This tutorial allows you to make a solar lamp equipped with a USB charger. It uses lithium cells that are reused from a old or damaged laptop. This system, with a day of sunlight, can fully charge a smartphone and have 4 hours of light. This technology have been documented during a stopover of the " Nomade des Mers " expedition on the island of Luzong in the northern part of Philippines. The association Liter of Light has already installed this system since 6 years in remote villages which don't have access to electricity. They also organize training for the villagers in order to teach them how to fix the solar lamp ( already 500 000 lamps installed).

This tutorial allows you to make a solar lamp equipped with a USB charger. It uses lithium cells that are reused from a old or damaged laptop. This system, with a day of sunlight, can fully charge a smartphone and have 4 hours of light. This technology have been documented during a stopover of the " Nomade des Mers " expedition on the island of Luzong in the northern part of Philippines. The association Liter of Light has already installed this system since 6 years in remote villages which don't have access to electricity. They also organize training for the villagers in order to teach them how to fix the solar lamp ( already 500 000 lamps installed).

Sommaire

lampe, solaire, batterie lithium recyclées, récupération, batterie ordinateur portable, recyclage, cellules lithium usagées, NomadeDesMers, nomade des mers, NomadeDesMers

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Matériaux

• Used laptop battery

• Solar panel 5V-6V / 1-3W

• Charge and discharge regulator (ex: 4-8V 1A Mini Li-ion USB Arduino Battery Charger TP4056)

• DC/DC tension converter DC/DC booster MT3608 (electrical component that will transform the 3.7 V of the batteries into 5 V)

• High power LED Lamp (ex : LED boutons 3W )

• Switch (to open the circuit and cut off the light)

• Electric tape

• Box

Outils

Cells extraction

• Gloves (to avoid cutting with the plastic of the computer battery or with the nickel ribbons that connect the cells)
• Hammer
• Chisel
• Cutting pliers

For the lamp fabrication :

• Glue gun (and glue sticks)
• Heating gun or small torch
• Wood saw
• Screw driver

Récupération de batteries/fr

Étape 1 - How it works

Étape 2 - Manufacturing stages

Étape 3 - Removing the cells from the computer battery

Étape 4 - Measure voltage of cells and ther capacity

Étape 5 - Realisation of the 3 different modules

Étape 6 - Connection of the 3 modules

Étape 7 - Building the case - Version 1

Étape 8 - Building the case - Version 2

en fr 1 Published