Harvest energy in battery using piezo

Hi everybody,

I want to harvest energy in a battery by using piezo (sensor). How can I do this?

I found this topic but I still don't know how to do it.

Thanks in advance

P.S: Sorry if my english is bad, I'm a french speaker. :sweat_smile: :sweat_smile: :sweat_smile:

An energy harvesting chip is the way I've heard of: SparkFun Energy Harvester Breakout - LTC3588 - BOB-09946 - SparkFun Electronics

What do you want to achieve exactly? What piezo sensors? Sensing what?

Thanks for you answer.

In my circuit, I have components which need to use battery. The circuit can use charger but I want also to charge the battery using piezo for more autonomy.

I’m using these piezo sensors.

I want to sense the user’s movements and convert it to energy through piezo sensors.

Energy from piezos will be extremely low. You'd be a lot better off trying solar cells.

Thank you for your answer too oric_dan.

Do you think that Lipo rider pro is sufficient (include solar panel and battery off course)?

This solar charger is intended to be used with a LiPo battery.

Ok jremingyon. Thank you all

OP, you might be interested in these things: http://www.ebay.com/itm/391311623841
[I ordered this on 17 Nov 2015 and it just came yesterday, after 2-months, so these particular guys are ....very.... slow, but many people sell it on ebay].

You'll notice it has a 5000 mAh battery, 2/ea 5V 1A outputs, and solar charging up to 200mA rate [not 200A!]. You can also charge the battery off your PC USB port. Cheap enough to try out. It should run an Arduino [preferable 3.3V board] for forever and a day.

Ok oric_dan, two months? I use arduino to develop a prototype for a contest and I must show the prototype in… 2 months.

But I love it. I’ll order it. Maybe I’ll use it for another project.

Thank you

Many companies sell the same item. Look for someone with quicker delivery.

I was just checking ebay about those sun chargers. It looks like all of the lower priced units come from Yiwu, Zhejiang, China, which is inland up near Shanghai. So, possibility that is the reason shipping was so slow.

Most everything I buy from CN comes from Shenzhen, which is next door to Hong Kong, and right on the coast. They charge more for the same solar chargers, but possibly the shipping arrangements are better and quicker. So, I would try someone from Shenzhen. Most things I buy from there arrive to the western US in 1-2 weeks, not 2-months.

I also found other sellers, located in the US, with a similar units and similar price. And some are 50-80,000mAh rather than 5,000.


FWIW, I'm not sure I would use such items in some fixed installation where a Li battery fire might be a serious problem. I was originally thinking of using one in my [relatively new] SUV to charge some stuff, but probably will not do that after all. The 5,000mAh unit might be less of a risk. Who knows.

Hi oric_dan,

Thanks for your reply. It helps me really in my current project.

Thanks :slight_smile: :slight_smile: :slight_smile: