What should be considered when using a power bank + USB-PD module to output 12V voltage to power wireless devices?

Ironic

USB-PD协议最大支持输出20V 5A，但是直接输出12V，受限于电流，最大功率是12V x 5A = 60W. 想要用满USB-PD协议支持的100W输出，再给电台供电，需要诱骗模块输出20V，再转12V或者13.8V。不过带一个适用新B合规的短波设备，直接输出12V应该足够了吧？

另外，移动电源与USB-PD诱骗模块是否有可能带来新的干扰？有人测过某品牌的某款充电宝，纹波感人。找了一下站里的帖子，没人专门讨论过。有没有懂哥可以讲一下？

Ironic

I'm not considering DIY because I'm worried about making something new and having it malfunction. I think using a battery from an electric bicycle or scooter is a good idea, especially lead-acid batteries, which are easy to connect. However, my two-wheeled electric vehicle uses a lithium battery, and I haven't thoroughly researched the charging and discharging protocols specific to certain brands of electric car batteries.

以前帖子找到的图

The image comes from this post: https://forum.hamcq.cn/d/2575/18

tudoubocai

Ironic Use a multimeter to check if the e-bike charging port has voltage output. If it does, simply purchase a converter that matches the voltage and converts it to 12V.

BI1SFC

The interference issue can be tested practically with a radio, don't just look at others, try it yourself. Increasing the voltage brings efficiency and heat generation. The typical power consumption of a radio is mainly standby mode and sudden high-current operation. Whether a power bank can withstand this impact is unknown. Additionally, you need to consider the RF power consumption and actual power consumption. It's safer to use a battery.

Ironic

BI1SFC I'm posting a question to see if anyone who has tried it before has any practical experience, so that I can avoid making mistakes and wasting time.

BG5JKZ

A power bank should be sufficient to charge a 705 or G90; don't bother with anything more powerful.

Ironic

BG5JKZ My estimate is similar; I can only support new B-compliant shortwave equipment.

BG2FZJ

It shouldn't produce particularly high power, but it's more than enough for powering the G90. This year, I used a CoolTech power bank and a "lure" cable to charge in the Mulang field.

BG2FZJ

I couldn't see any interference myself. I added a magnetic ring to the power cable, but I don't know if it helped or not. Haha.

BG5GDP

I used a 6100 + 12V to lure CQWW, but be aware that it might cause some interference. Also, pay attention to the current to avoid damaging the equipment.
This year, I used the 705 + 12V to lure in participants, and it felt like a complete failure.

BG2KAJ

6100 recommends using a 9V battery to induce heat, which should significantly improve the situation.

BH3NEK

I bought a bait but haven't tried it yet. I'm going to try using it on my X6100 next.

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