First off, I really like the way this keyboard feels, and when it works, it's awesome. Unlike others, I have had no issues with battery life; it's at 98% right now after using it all day today.
However, I currently have a K750 which is a replacement for a previous K750 I had, which also eventually had the problem that caused me to replace it with this current one.
The problem is that sometimes, the keyboard will just... stop sending keystrokes to the computer. Or it'll delay sending them for a second or two or five. Or it'll double-up on a single keypress. Or triple-up. Or it'll duplicate a series of keystrokes.
-- begin demmonstrationin of the problem --
If yoou type a lot, having to constantly go back and edit things youu typed correctly but that the kkeyboard sent iincorrectly to the computer is aggravating beyond all rrecokoning. This lasstt section heere was typed without ccorrecting the wooords after the fact - I've just left the text as the keyboard sent it too the computer (after typing everything carefull y and correctly, though quickly).
If your keyboard did thhiss to you, would you give? (that should read 'give it more than one star', but the keyboard didn't transmit the part after 'give' to the computer so I had to retype it here so you'd understand what I was trying to say and that I'm not a complete lunatic) (good times)
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From the manufacturer
Wireless Solar Keyboard K750 for Windows
Great typing—powered by light
Say goodbye to battery hassles. Any light source keeps K750 charged and ready. The streamlined designed adds sleek style to your workspace and the keys are designed for comfortable typing hour after hour.
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Light-powered keyboard
The keyboard charges itself with lamplight or sunlight. Easily monitor your power level with the Logitech Solar App.
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Thin, streamlined design
Only 1/3 inch thick, the ultra-thin design and full-size layout are the perfect blend of style and function.
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Feel-good typing
With Logitech’s concave key cap design, you’ll enjoy comfortable, fast, fluid and quiet typing day in and day out.
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Plug-and-play wireless connection
Simply plug the included tiny Logitech Unifying receiver into your computer and start typing. Enjoy a reliable connection thanks to Advanced 2.4 GHz wireless technology.
System Requirements
- Windows XP, Windows Vista, Windows 7
- USB port
- Light source from sunlight and/or indoor lighting
Compare Wireless Keyboards
 K750 Solar |  K270 |  K350 |  K740 |  K800 | |
|
Advanced Wireless
| ✔ | ✔ | ✔ | USB wired connection | ✔ |
|
Unifying Receiver
| ✔ | ✔ | ✔ | ✘ | ✔ |
|
Enhanced Comfort
| PerfectStroke Keys | ✘ | Comfort Wave Design | PerfectStroke Keys | PerfectStroke Keys |
|
Palm Rest
| ✘ | ✘ | Cushioned | ✔ | ✔ |
|
Illuminated Keys
| ✘ | ✘ | ✘ | ✔ | ✔ |
|
Max Battery Life
| Infinite/powered by light | 24 months (2 AA) | 36 months (2 AAA) | USB powered | 36 mo. (Rechargeable) |
|
Profile
| Ultra thin | Thin | Full size curved | Ultra thin | Ultra thin |
|
Programmable F-Keys
| ✔ | ✘ | ✔ | ✔ | ✔ |
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PRODUCT CERTIFICATION (1)
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Customer reviews
Logitech, I used to love your products but in this, you have let me down!
Reviewed in the United States on February 10, 2017
If I had written this review two years ago this would have been 5 stars. Great feel, very similar to my Microsoft equivalent and to top it off solar powered. That's where I was wrong!As many others are slowly discovering this is a disposable keyboard, that is to say after 2-3 years its very likely your battery which holds the solar charge dies. That battery is not user replicable so you are left with a useless lump of shiny plastic destined for landfill! This isn’t even touching on the environmental ethics of making such a product which would otherwise last many many years, disposable. Makes good business sense from Logiech’s point of view, but not so much from mine as a consumer.After many weeks of arguing with Logitech and them refusing to replace it or repair it, I tried to change the battery myself. Even if you can find the correct type of battery, the keyboard wont then bind with the computer after replacement. So, in the bin it goes!!!With Logitech's stance on the battery issue, I can in no way recommend this product and I will (partly out of spite, and partly due to poor product design and customer service) not be buying another Logitech keyboard. A keyboard at this price is not a product that should need to be replaced every 2-3 years!!
Reviewed in the United States on February 10, 2017
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Top reviews from the United States
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Reviewed in the United States on September 13, 2016
Reviewed in the United States on February 10, 2017
As many others are slowly discovering this is a disposable keyboard, that is to say after 2-3 years its very likely your battery which holds the solar charge dies. That battery is not user replicable so you are left with a useless lump of shiny plastic destined for landfill! This isn’t even touching on the environmental ethics of making such a product which would otherwise last many many years, disposable. Makes good business sense from Logiech’s point of view, but not so much from mine as a consumer.
After many weeks of arguing with Logitech and them refusing to replace it or repair it, I tried to change the battery myself. Even if you can find the correct type of battery, the keyboard wont then bind with the computer after replacement. So, in the bin it goes!!!
With Logitech's stance on the battery issue, I can in no way recommend this product and I will (partly out of spite, and partly due to poor product design and customer service) not be buying another Logitech keyboard. A keyboard at this price is not a product that should need to be replaced every 2-3 years!!
Logitech, I used to love your products but in this, you have let me down!
Reviewed in the United States on February 10, 2017
If I had written this review two years ago this would have been 5 stars. Great feel, very similar to my Microsoft equivalent and to top it off solar powered. That's where I was wrong!Reviewed in the United States on February 10, 2017
As many others are slowly discovering this is a disposable keyboard, that is to say after 2-3 years its very likely your battery which holds the solar charge dies. That battery is not user replicable so you are left with a useless lump of shiny plastic destined for landfill! This isn’t even touching on the environmental ethics of making such a product which would otherwise last many many years, disposable. Makes good business sense from Logiech’s point of view, but not so much from mine as a consumer.
After many weeks of arguing with Logitech and them refusing to replace it or repair it, I tried to change the battery myself. Even if you can find the correct type of battery, the keyboard wont then bind with the computer after replacement. So, in the bin it goes!!!
With Logitech's stance on the battery issue, I can in no way recommend this product and I will (partly out of spite, and partly due to poor product design and customer service) not be buying another Logitech keyboard. A keyboard at this price is not a product that should need to be replaced every 2-3 years!!
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Reviewed in the United States on September 28, 2017
Great wireless solar keyboard-needs rechargeable 2032 version of battery when the battery dies.
Reviewed in the United States on September 28, 2017
Logitech K750 Wireless Solar Keyboard Works well. The battery died after about 2.5 years of use. Although the manufacturer states that the battery is not replaceable, I pulled out the carrier and discovered that the battery was a rechargeable ML2032 lithium button cell. It had a label that warned you not to replace the battery. Well the keyboard is dead without a battery so I went ahead and put a fresh ML2032 in the carrier. The keyboard has worked just fine since replacing the battery (about 1.5 years ago). Today the Mac version of this keyboard died (battery lasted about 3.5 years on the Mac version). Same thing-replace the battery and the keyboard is working again. Photos attached from the replacement of the battery on the Mac version of the keyboard. Photos show the battery carrier partially pulled out from the keyboard, removed from the keyboard, battery removed from carrier-note battery type with label pulled back and Solar App report after battery replaced. Note that a 2032 battery has a nominal capacity of 0.21 WH and could generate some heat if shorted. If you replace with a ML2032 or LIR 2032 you should have no problems. A non-rechargeable CR2032 may be a different matter. Note that Amazon has these batteries for sale. Your local retailer is not likely to have them.
Reviewed in the United States on September 28, 2017
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Reviewed in the United States on March 27, 2018
Reviewed in the United States on June 15, 2017
Now, as much as I love this keyboard, I did have to replace the rechargeable 3V Lithium button cell battery in 2016. The battery at that time cost $6, well worth it considering that it brought life back to my favorite keyboard. This means the original rechargeable button cell battery that came with the keyboard lasted more than 4 years! In summary: Pro: Durable, comfortable, sleek, elegant, and contemporary looking. Con: None
*Even the price has come down, bought it for nearly $20 more 6 years ago![[ASIN:B00CJ3T188 Maxell ML2032 Rechargable 3V coin cell lithium motherboard cmos battery]]
Love it and ready to buy another one (NOT as ...
Reviewed in the United States on June 15, 2017
So I have had the Logitech Wireless Solar Keyboard (the original when it first came out) for almost 6 years now! Bought it back in September 2011, when solar keyboard was quite the novelty (at least in my opinion). Love it and ready to buy another one (NOT as a replacement) for my new office. The original one is still going strong, allowing me to write this review.Reviewed in the United States on June 15, 2017
Now, as much as I love this keyboard, I did have to replace the rechargeable 3V Lithium button cell battery in 2016. The battery at that time cost $6, well worth it considering that it brought life back to my favorite keyboard. This means the original rechargeable button cell battery that came with the keyboard lasted more than 4 years! In summary: Pro: Durable, comfortable, sleek, elegant, and contemporary looking. Con: None
*Even the price has come down, bought it for nearly $20 more 6 years ago![[ASIN:B00CJ3T188 Maxell ML2032 Rechargable 3V coin cell lithium motherboard cmos battery]]
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Top reviews from other countries
Ivailo V. Ivanov
Amazingly it is indeed charged all the time
Reviewed in the United Kingdom on January 21, 2022Justinas
Great
Reviewed in the United Kingdom on January 5, 2021
Justinas
Reviewed in the United Kingdom on January 5, 2021
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Amazon Customer
Horrible lag - I should have listened to the negative reviews
Reviewed in Canada on January 28, 2019
