Wireless charger set... where to buy ?

[Externet]

Hi.
Looking for a tabletop "transmitting" charger half and a "receiver" half to fit inside a sealed gadget I built that operates with 1 lithium cell. No phones involved at all. Aliexpress? ebay? temu? who sells them? What is the correct wording to search ? (Kit or assembled)

Wall adapter---->emittingcoil---->wirelesslink---->receptioncoil---->4Vcellinsidegadget.

 

[For The Popcorn]

Would you believe "wireless charging coil"?

 

[Sophia Zeng]

Maybe you can find it from Alibaba,search by Wireless Charger Kit, Charge Adapter, Wireless Charging Stand Sets? Not sure if below link helps.

New Design 3 In 1 Qi Wireless Charger Kit Charge Adapter Wireless Charging Stand Sets For Iphone Xiaomi For Airpods Iwatch - Buy Wireless Charger Set,Wireless Charger Stand Set,Qi Wireless Charger Set Product on Alibaba.com

New Design 3 In 1 Qi Wireless Charger Kit Charge Adapter Wireless Charging Stand Sets For Iphone Xiaomi For Airpods Iwatch - Buy Wireless Charger Set,Wireless Charger Stand Set,Qi Wireless Charger Set Product on Alibaba.com

www.alibaba.com

 

[ZipZapOuch]

Digikey and most other distributors carry them. No reason to run to aliExpress or Amazon - get a good one, with a datasheet.
TDK, Würth, VishayDale, Signal .transformer and Laird are all equally good. Pick the size, frequency and winding format you want.
Search: wireless charging coils At Digikey fives great results for coils.

Otherwise, use Qi is the industry standard for wireless power transmission protocol for most phones. You'll need a transmits and a receive chip to make sure of proper alignment, frequency and so on. TI and NXP used to offer kits but pricy. Seeed and Adafruit have some well documented kits but you may have to play with the transmission distance and correct for permittivity losses. Tough to transmit through a conductive material so I hope you're dealing with a plastic housing for your gadget.

 

[Externet]

Thanks, lady and gentlemen. With your assistance and after weeding out chinese very wrong marketing descriptions, found a candidate I did not see at Aliexpress.

----> https://www.amazon.com/Wireless-Cha...Wireless+Charging+Coil&qid=1688658318&sr=8-15

Edited: Found at AliExpress
---->

https://www.aliexpress.us/item/3256804296376908.html?spm=a2g0o.detail.1000014.4.26647921VUJtbw&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40000.326746.0&scm_id=1007.40000.326746.0&scm-url=1007.40000.326746.0&pvid=0313f3bb-5d7a-42a6-a2b0-abfca29391e7&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40000.326746.0,pvid:0313f3bb-5d7a-42a6-a2b0-abfca29391e7,tpp_buckets:668%232846%238114%23705&pdp_npi=3%40dis%21USD%212.81%212.25%21%21%21%21%21%402101c5b216886614018956074e511c%2112000029318016018%21rec%21US%21171220328