Is wireless Charge possible on case and smartphone iPhone with ring?
As we can charge wireless Charge just to put, it is very convenient. However, worried people may be whether they are putting case and finger ring (smartphone ring), and they can charge smartphone.
We tested using product of ELECOM whether you were putting smartphone case and finger ring, and you could charge iPhone here.
Do you influence wireless Charge when you put accessories in smartphone?
As smartphone is personal tool, we think that we put various accessories depending on people and customize. Above all, it may be said that finger ring raising smartphone case letting atmosphere of appearance change completely and grip when we had is standard accessory of smartphone. However, does wireless Charge not have problem even if we put such accessories?
Magnetic field occurs by bringing coil of battery charger and coil of smartphone close, and wireless Charge of Qi standard converts into electricity. Therefore possibility that we cannot charge increases when position between coils slips off and shuts out magnetic field in metal. As it is natural to put accessories in smartphone, and thickness occurs between smartphone and battery chargers, we are at risk of not being able to charge.
We inspect whether we put smartphone cases to iPhone, and there is wireless Charge
In wireless Charge of Qi standard, position of coil leaves as having mentioned above, and what is shut out by metal is fatal. Therefore we actually attached smartphone case and finger ring to iPhone XR corresponding to Qi and tested whether there was wireless Charge.
Wireless battery charger uses wireless battery charger "W-QA02 series" of standard 5W.
Thin TPU case (PM-A18CUCU series)
It is transparent case "PM-A18CUCU series" of TPU (Thermoplastic polyurethane) material of thinness 0.7mm first that tried to avoid trouble that we cannot charge at thickness. It is simple for the appearance, but there will be many people using case in similar type as we can make use of smartphone original design to be compact.
Because there was not thickness of plastic, we were able to charge without any problem properly.
Thin leather case (PM-A18CPLFY2 series)
It is thin leather case "PM-A18CPLFY2 series" of fluent feel of a material successively. Sticker, this product "supported wireless Charge" was put.
There was thickness from TPU case of a while ago, but was able to charge this safely without disturbing magnetic field of coil according to the notation. We seem to be able to charge even leather case without problem if thin.
Notebook type leather case (PM-A18CPLFY series)
It is "PM-A18CPLFY series" which is thicker with notebook type leather case. As there was not Sticker, this "supports wireless Charge" unlike case of a while ago, it is place to be worried about.
Cardholders are on in addition to leather case. It seemed to be dangerous, but was able to charge the point of contact with battery charger without what problem safely when we put magnetic cards such as Suica in the cardholder as it was not Specifications which put card in the coil side to charge. But, in the case of case with thickness, we may not charge depending on combination of smartphone and battery charger. Using is more reliable with product corresponding to wireless Charge.
We inspect whether we put finger ring, and wireless Charge is made
It is finger ring attached to anti-fall of smartphone successively. As well as case, we tested using wireless battery charger "W-QA02 series" of 5W whether wireless Charge was made.
Case (PM-A18CTSR series) with finger ring
"PM-A18CTSR series" with finger ring is sturdier than notebook-shaped case made in the backside of case. By adopting honeycomb structure in the case inside, realize impact-resistant improvement and lightweighting, but there is considerable thickness by just that much.
Unfortunately we were not able to charge this case whether "thickness of case" or "finger ring" influenced. Both appearance and convenience are good cases, but they take off case and seem to but use when they perform wireless Charge.
Finger ring (P-STRAM series) to stick on the back
"P-STRAM series" is product of type to stick only finger ring on the back of smartphone. We expected that we could charge as there was not thickness, but were not able to charge result. Finger ring is metal, or reason does not become clear whether this is because there is thickness.
However, we began Charge mode only for a moment when we exchanged battery charger with "W-QA11 series" of the 10W output and came back to state that we could not charge afterwards. When we put finger ring, only share of thickness of ring declines diagonally, and iPhone is installed. Therefore if there was much number of coils incorporated in wireless battery charger, part which there was not of ring grounded and might have been able to charge only in instant.
Smartphone case is almost all right, but is careful about finger rings
It was rechargeable, and, as a result of experiment, in the case of smartphone case, it followed that we could not charge when there was finger ring.
Of course let's confirm by all means as anything cannot say that we can speak wireless Charge if it is smartphone case whether we cope with wireless Charge on seeing package and product explanation. In addition, in the case of finger ring, it was not sure, "we can never charge". Depending on combination of products, we may charge.
However, it becomes the cause that metal portion of finger ring disturbs wireless Charge, and, in the case of the worst, there is danger of fever, too. When we do wireless Charge, it will prevent there from being absolutely metal finger ring.