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--- member-projects:quansheng-uv-k5-dc-charger-conversion [2023/12/15 21:06] – mm7shx
+++ member-projects:quansheng-uv-k5-dc-charger-conversion [2025/12/28 18:59] (current) – mm7shx
@@ Line 1: / Line 1: @@
-====== Quansheng UV-K5 13.8V DC Charger Conversion ======
+====== Quansheng UV-K5 13.8 V DC Charger Conversion ======
-===== Why? =====
+The standard mains charger supplied with the Quansheng UV-K5 has been reported to generate significant radio-frequency interference (RFI). Although the transceiver supports USB-C charging, this method is comparatively slow and  does not charge the battery beyond approximately 80 % of its nominal capacity.
-The supplied mains charger produces a lot of RFI, and is considered a bit sketchy by some people.
+Converting the charger base to operate from a regulated 13.8 V DC supply mitigates these issues and allows the charger to be powered directly from a typical amateur radio station power supply.
-===== How? =====
+===== Method =====
-Using a cheap TP5100 lithium battery charging module and a new common anode red / green LED (the original one is common cathode). The module can be switch to 8.4v 2S charging mode by shorting the pads marked 'set'. Construction is straightforward and should be fairly clear from the image below. I hot glued the module to the inside of the base.
+The conversion utilises a low-cost TP5100 lithium battery charging module and a replacement bi-colour red/green LED with a common-anode configuration. The original indicator LED supplied with the charger is common-cathode and therefore incompatible with the TP5100 module.
+The TP5100 module is configured for 8.4 V (2-cell, 2S) charging by shorting the pads marked “SET” on the module. Construction is straightforward and should be clear from the image below. The module was secured inside the charger base using hot-melt glue.
 {{ :member-projects:img_3961.jpg?400 |}}
-===== Where to get the parts? =====
+===== Parts Sourcing =====
-The parts are available from all of the usual places. I bought the LEDs from [[https://www.ebay.co.uk/itm/233616409511|this eBay listing]] and the charging module from [[https://www.aliexpress.com/item/1005004082336931.html|here]] on AliExpress.
+All required components are widely available from common online suppliers.
+The bi-colour LED was obtained from [[https://www.ebay.co.uk/itm/233616409511|this eBay listing]], and the TP5100 charging module from [[https://www.aliexpress.com/item/1005004082336931.html|AliExpress]].
 ===== Acknowledgements =====
-Thanks to users from the [[https://www.facebook.com/groups/2291286734508728|Quansheng UV Radio UK Users]] Facebook Group for their advice.
+The author wishes to acknowledge the assistance and advice provided by members of the [[https://www.facebook.com/groups/2291286734508728|Quansheng UV Radio UK Users]] Facebook group.
-, MM7SHX
+,
+GM5DNA