I think Steve was asking about the Qi standard wireless charging pads/devices. It is a different 'system' or standard that won't work with the Touchstones. I too have the Palm Touchstone Galaxy S3 compatible battery cover/back like you, and it works pretty well, although it is hard to get it to charge/stay on the Touchstone with any kind of case. The Qi charging standard system will allow a slightly greater distance between the induction coils. For the Palm Touchstone, the distance between the coils has to be within 3mm. For the Qi system, it can be 5mm. There is a patch you can purchase and install inside your standard S3 back battery cover, similar to the Palm Touchstone patch inside the ones we got off of ebay. Because of the ability to charge (hopefully) though a case, I'm thinking about going for it. Right now, I can just get a charge going with my ZooGue Social case. Any thicker, it won't charge.
I recently decided to take the plunge and buy a QI Compliant wireless charger after reading some of the reviews. While some of the reviews were not positive the one review from the owner of a S3 using an Otterbox Defender case caught my eye.
$42.46 Qi Inductive Wireless Charging Upgrade Kit for Samsung Galaxy S3 - US plug / works with i9300 / i9308 / i939 / i535 at FastTech - Worldwide Free Shipping
Anyway, this product does indeed ship from Hong Kong. A couple days after ordering it I found out that the item was out of stock but would be in stock in a couple of days. Even with being out of stock and shipping from Hong Kong I received the unit in 11 days (counting weekends). It shipped on a Thursday and I received it in Eastern Pennsylvania the following Monday. Not bad for free shipping. So after a few days of using this charger here are my observations:
The first thing I noticed was that the wireless charging pad that is placed on top of the S3 battery inside the S3 does not add much, if any thickness, to the S3.
In fact, it allows me to use the STOCK S3, plastic rear cover and not some thicker separate cover I had to pay for. Even more important to me is the fact that my S3 fits inside my Otterbox Defender (OBD) case (both the plastic front and rear case and the silicone cover that goes over the back of the plastic case).
Now for the important stuff....This wireless charger will charge my S3 through the OBD case but I found that it does matter how one positions the S3 on the charging pad.
For some people (using the full OBD case) this may be a deal-breaker. For me, I could care less. What I found out is that my S3 will only charge reliably if I lay it across the charging pad cross-wise (9 o'clock to 3 o'clock). If I place it squarely on top of the charging pad so that it covers the entire pad (12 o'clock to 6 'o'clock), the S3 charges for a while then stops charging then starts charging again. After further experimentation, I found that if I remove the OBD Silicone cover the S3 will charge without starting and stopping
when I place it squarely on top of the charging pad so that it covers the entire pad (12 o'clock to 6 'o'clock). For me, that is not an option since removing and re-installing the silicone case every time I charge the S3 is a PITA and will stretch it in no time. For those here not using a case as thick as the OBD case, you S3 will most likely charge just fine when placed squarely on top of the charging pad so that it covers the entire pad (12 o'clock to 6 'o'clock),
For those with concerns about the beeping sound when wireless charging at night
you will not have that problem with this charging system as long as you
turn off the sound for notifications before going to bed (settings/sound/volume/notifications). I do this every night before going to bed anyway because I do not want text messages or emails I receive waking me up with the notification sound. As long as I turn off the notification sound, my S3 does not beep drops below 100% charger and begins charging again.
For those with concerns about the S3 screen coming on when the S3 drops below 100% charge and begins charging again this unit DOES DO THAT. I turn the brightness of my S3's screen down at night and have it on the far side on my nightstand so this does not bother me. Sometimes I just turn off my S3 and night before going to bed and charging it which is another way for me to deal with the screen coming on when the S3 starts charging.
Observations when Charging:
- The S3 does Ring when it receives an incoming call.
- If one has the notification sounds turned on for texts or emails the S3 will make those sounds when texts or emails are received
- The S3's wireless hotspot works fine to connect to my laptop
- Bluetooth connection to my Jambox works fine when I play music
- The S3 will charge the battery when running the wifi hotspot and playing music via bluetooth not just stop the battery charge from dropping
- The Battery temperature, the charging pad temperature and power adapter can get warm. How warm seems to depend on whether or not I am running the wifi hotspot and or bluetooth on the S3.
- The battery, the charging pad and power adapter do not appear to get nearly as warm if I am just charging the S3 and not using it at the same time.
- When not charging but still plugged in the charging pad is not very warm at all. The adapter is not all that warm either when not charging.
- The charging pad has tiny plastic feet and does not have rubber feet so it will slide on a smooth surface and possibly scratch furniture if one drags it across a wood desk, take, etc.
I use an old mouse pad under the charging pad so it does not slide on or scratch the surface I have it sitting on.
Misc Stuff:
- When the S3 reaches a full charge the battery stops charging, the green charging light on the charging pad goes off and the screen on the S3 comes on. After a minute the screen goes off (as per my screen timeout setting)
When the S3 battery's charge drops below 100% the battery starts charging, the S3's screen will turn on, the S3 will beep (if the notification sound is turned on) and the green charging light on the charging pad goes on.
- I am running Android Version 4.1.2, Baseband Version I535VRBMF1
- I paid $42.46 US Dollars using my paypal account for this unit.
Sorry for the LONG post. I hope some here find this information useful. Wireless charging may not be the answer for everyone. This particular unit seems to fit my needs, it may or may not fit yours. The only question I have not is how long this unit will last. I guess time will tell.
As always, your mileage may vary so don't shoot the messenger if this unit does not work for you.