Great upgrade for long hours of use.
590226
This is very confortable. I also like the slope angle. The only reason I give it 4 stars instead of 5 is because I would like the memory foam to be just a litle bit softer. But it is vastly better than my desk's surface....
3912264
Great purchase for longer play time, batteries don't take too long to charge and I recommend a multiple terminal charger as an add on.
2797091
This camera is an upgrade over my trusty SD300, which still works apart from the mode switch getting stuck once in a while. I took literally thousands of pictures with it, and I expect the same functionality and durability with the SD1100IS. This upgrade feels solid and carries over most of the features I enjoyed with the old one, adding image stabilization and--hallelujah--a battery life indicator. And 8 megapixels is enough for a hi-res 300ppi print at 8"x10". Best of all, it uses the same battery and SD cards as the old one, with the added capability of the SD HC cards. I have also owned a couple of Olympus (good) and a Panasonic (awful), and I can honestly say I'm a Canon man. The SD1100IS is a tremendous value, looks much nicer than the SD1000, and the blue casing is much prettier in person. Excellent quality photos. Highly recommended.
4667050
Awesome upgrade. I can go at least 2 days with heavy use now without fear of my phone going dead.
2458418
Fantastic upgrade from the older model. Sound quality is consistent. So lightweight I forget I have them on most of the time. Retractable ear buds are a plus, though wires are thin.
1617312
A terrific improvement over the regular batteries. Fast-charging, light weight, and long lasting.  Turn-around time was excellent. Now if they would just make an L-I battery for the twelve volt tools.&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Ryobi-P106-Compact-Lithium-Ion-Batteries-2-Pack/dp/B003M1G3DM/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Ryobi P106 Compact Lithium-Ion Batteries (2-Pack)</a>
1472729
Long lasting and powerful, these batteries are a perfect upgrade for the smaller battery packs that often come with the tools. Seller was quick to ship. Highly recommended!
3981709
A good upgrade for the price.  Noticeably better than stock
1490560
Very affordable upgrade for an old workhorse... I'd have purchased more if the laptop could have fit it.
4304435
Nice upgrade from my original Fire 8.9 device, which was getting to feel slow and old and outdated.  Nice crisp screen, which seems almost as big but in a trimmer, lighter case, and it even seems to hold a charge longer.  Gotta get used to a different interface, which has some good and some awkward changes. I'm glad I bought it.
3340398
It is worth the upgrade because the new features are worth their weight in gold. This version is considerably more stable.
1195818
Glad I upgraded to these batteries once my older model batteries died (they lasted six years).  Hopefully I will get the same extended use from these as well.  I do unplug them from the adapter when not in use after researching that there is a parasitic drain on the battery from the adapters electronics.  The adapter is a tight fit in my tools which I am please with, nice and snug with no movement.  I can recommend these batteries and adapter as I quickly put it to use upon delivery and am very pleased.
1701956
I bought my first Beats wireless solo used and was so impressed with the battery life, that I upgraded. I work some days 12-15 hours with the headphones on streaming Pandora and have yet to hear the low battery warning. The battery life indicator is a welcome addition, 5 lights lit up 1 to 5 depending on level. My original solos look goofy on me, so these have been more cosmetically pleasing as well.
27074
The original battery on my T60 started at about 100-minutes play time and it slowly degraded to less than one hour. I am happy to note that this replacement can give me up to 3 hours of laptop use - not DVD-watching.

I am taking away one star because of the weird format - it extends another inch or so off the T60 frame. It may be worth to note, as a positive, that the battery shape does not prevent attaching the laptop to the T60 docking station.

_______________________________________

Jan. 2010 update

I am pleased to testify that this 9-cell will outlive my T60. It's almost as good in January 2010 as it was in November 2008 when this review was written - still giving me about 2.5 hours when fully charged. In fact, as I am upgrading from a T60 to a T400, I am keeping this 9-cell as a backup/extra battery for my new laptop.

And, one more thing. I am no longer bothered by what I called back in 2008 'weird format'. It's something you get used to. After all, Thinkpads were never meant to be fashion statements.
2959390
One of the best upgrades to an already perfect weapon.
2148099
This an upgrade from a Sennheiser 151, and it is quite an upgrade indeed! It fits confortably, whereas the 151 squeezed and used to hurt after extended use, good job there Logitech! Being around the ear as opposed to on helps comfort, and cuts outside sound out much better than an over ear set.

Surround sound is very nice. I wasn't expecting big deep bass extension nor did I expect studio monitor sound quality, but this Logitech headset performs beyond expectation for the price. I've sampled quite a few headsets in Walmart and Bestbuy, and you will pay 3-4 times for any headset they carry compared to this Logitech headset, as far as sound quality, durability, and just overall value.

Mic quality is clear but a little softer than the 151 used to be, so when on Teamspeak or Discord I had to minimize and go into Control Panel to raise Sound/Recorder volume to max at 100 to get the same output the 151 Mic used to put out at a volume of 85/100.

After about 13 months of use and careful storage between uses it mysteriously stopped working. Decent for the price but I had hoped it would last at least a few more years. You get what you pay for. I went to Bestbuy and replaced it with a HyperX Cloud 2 and I am very happy with the improvement to sound and mic quality. I wouldnt take a step back and purchase it again but it was a decent value while it lasted.
208440
Easy install , great upgrade. Be sure to do the break in process.  Makes a big difference.