(tr)uSDX Forum

I'm new to amateur radio and electronics (excuse the lack of knowledge shown in these questions).

I am looking for a battery to power my trusdx to get the 5w output.

I have been looking at different batteries on Amazon and have read some forum threads here and I am a bit confused.

1. When the trusdx says it takes 13.8V does that mean that's the maximum, do not exceed?

2. And, I read the .008A on standby but didn't see the amps for TX at 5watts. I did a bit of math and came up with between 0.5-1A during transmit. Is that roughly correct?

3. If you use a battery that is rated as having a higher max continuous drain... Say batteries that allows 3-9A will that hurt the radio, or does the current ability of a battery only matter if it's too low? As in, it will only send a current as demanded by the load (what the radio wants)?

4. I also noticed a few forum threads where people were using 3 x 16850 batteries to get 11.1V. What output wattage do you get from the radio with supplying 11.1V?

5. I was looking at a 12V 9A battery and the details said it can go up to 14.6V during the duty cycle, is that going to be harmful as it exceeds the 13.8V?

Sorry for these basic questions. I'm newly licensed and eager to learn.

Current draw is about 80ma on receive and about 500 to 600ma on transmit.
The maximum voltage is specified as 16V, but most people stay below that with the standard 13.8 or 14V being a good choice for a maximum. See https://dl2man.de/4-trusdx-manual/
Power output at different voltages will be dependent on your transceiver's efficiency. Many get 5W at 12V, so they can expect 4W or more at 11V.
More info about the (tr)uSDX can be found on the Facebook group https://www.facebook.com/groups/trusdx
Remember that it takes a 6dB (4X) TX power increase to make the receiving station see a 1 S-unit increase in your signal. So a watt more or less doesn't really make a difference.
AL - VE3RRD

my advice is to buy a 2000 mah 20c 3 Cell LiPo battery. They are batteries used in rc model making and guarantee you excellent autonomy. The charging voltage is 12.6 volts but soon stabilizes at 11.8 volts.

My choice is a LiFePo4 4s battery
When fully charged, it gets 14.4 volts. This is still safe. The only note: at high voltages you need to watch the SWR, otherwise the risk of damaging the output transistors increases greatly

LiFePo4 4s 32700 6000mah:

Hello,

I just bought an assembled kit! Newbee on this forum, and I wondered if a 14,8 V LiPo or even LiFePo4 at 6Ah for example. Isn't it too dangerous?

Thanks for answeing