26 jul

Hina 48V 100Ah LiFePO4 Deep Cycles Lithium Battery 5.12KW for Solar RV Off-grid

Introducing the HinaEss Hi5 Lithium Battery with a 48V voltage output and 100A or greater current output. This off-grid system configuration is perfect for recreational vehicles, marine vessels, sheds, camping/hiking trips, home/garden use, and as a back-up power source. This Hi5 model 5.12KWH LiFePO4 deep cycle battery is a reliable and efficient power source for your alternative energy needs. Say goodbye to traditional electrical supplies and switch to the power of the sun with this solar-powered battery.

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25 jul

CIS Solar Cells 60mm sq. Mini Panel Photovoltaic Science Fair Project DIY power

Shell CuInSe2 (CIS) Photovoltaic Minimodules The main advantage CuInSe2 (CIS) cells has over amorphous silicon cells (a-Si) is that a-Si loses around 10% of its power after a month or so of exposure to sunlight, whereas CIS actually gains about 10% after approximately 3 hours exposure to the sunlight of at least 1/3 standard full sun intensity with no load (light soak). The photons of sunlight modify the semiconductor structure, repairing boundary defects that are produced during the high temperature production processes. After this light soak, the efficiency gain is permanent. However, the light soak must be performed with no load. So before permanently connecting them to a load, you should leave them in the sun for a few hours to get the max efficiency. Specifications: Chemistry: Copper Indium Selenium CuInSe2 (CIS) Voltage, open circuit: 4.5 VDCCurrent, short circuit: 100 mARated output: 3.2 V DC @ 80 mA (full sun)Rated power: 0.25 Watts (full sun)Dimensions: 60 mm x 60 mm x 2.2 mmWeight: ~18 gramsConnection: Solder tab leads on back side. (negative tab marked -)Environmental: Cells has been epoxy encapsulated for protection.

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