# Replace some LEDs with Diodes [closed]

I have a COTS solar battery charger that has a number of different LEDs identifying the battery level, if its charging, etc. Its going to live in the shed, so 99% of the time no one will see its pretty array of lights. Would it be OK to replace these LEDs with diodes and would it save any electric? Thanks in advance.

## closed as off-topic by Ignacio Vazquez-Abrams, PeterJ, Daniel Grillo, nidhin, RicardoFeb 4 '16 at 11:39

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• "Questions on the repair of consumer electronics, appliances, or other devices must involve specific troubleshooting steps and demonstrate a good understanding of the underlying design of the device being repaired. See also: Is asking on how to fix a faulty circuit on topic?" – Ignacio Vazquez-Abrams, PeterJ, Daniel Grillo, nidhin, Ricardo
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• No, diodes have different forward voltages than LEDs. But maybe you can just omit the LEDs? – JimmyB Jan 30 '16 at 21:18

For example, a 3.3V circuit driving a 2.4V LED to 7.5mA would use a 120$\Omega$ resistor. If you replace the 2.4V LED with a 0.7V diode it will draw almost 22mA or almost 3x the current (and therefore, since it's all supplied by 3.3V, almost 3x the power, and over a given time period, 3x the energy).