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Hello, thank you for the accept. I am running KM4ACK’s script “Build A Pi” and I love it. I am running Build A Pi, on a Pi 3B+ and using a Ingcool 7IP-caplcd Hdmi 1024x600 pixels, 7” touch

I had a working RPi-0 that I could access from anywhere via VNC through the home WiFi, or access directly via hot-spot and VNC when out of range of that WiFi. All was good, then I lost my home WiFi

I also agree with Ed, especially regarding the C rating of your LiFEPO4 batteries. I built a solar generator based on Julian’s (OH8STN) 576W design and when researching this chemistry I found there

I agree with Ed.. I am curious if the lifepo4 battery was giving 100w RF power in the past or never did? If not then you can parallel in more battery and save a little $. if it did give more power

There are a number of possible factors involved here that will cause this when using a battery vs a power supply. Like most mobiles, the Yaesu FT-891 will roll back the output power whenever the input

Run this command and I'll see if I can spot what the issue may be *bash ~/pi-build/diagnostic* -- 73, de KM4ACK YouTube ( https://youtube.com/km4ack ) | Tip Jar ( https://www.paypal.me/km4ack )

Version 3.0.7 I went through updates of the applications I have loaded today just in case something was slightly out of date. I can provide any screen shots or answer any questions you may have. Thank

I use an MFJ-446C Battery Booster to keep the transmitter at 13.8 Volts up to 25 amps. Booster drops out on receive so no noise issue controlled by xcvr PTT or manually. Input can be set to shutdown

Hi, Bernhard! Thanks for writing.? I will be upgrading my batteries and photovoltaic system in the near future and look forward to 100W output. Vy 73 David SV0SGS Am 22.06.21 um 16:59 schrieb B J

David, yes the Genasum are good units.? 14V IS full charge. QRP is fun too...? I am often amazed what it will do. steve WB3LGC

Hi, Steve! Thx for your reply.? I will check the battery specs again. It has been a while. Maybe it just can't deliver the amps. It is possible that the battery could have developed a bad cell, but I

Thx for your reply.? I will check the battery specs again. It has been a while. Maybe it just can't deliver the amps. It is possible that the battery could have developed a bad cell, but I don't

Thx for your reply.? 13.8V and 15A comes out to 207W.? I guess that is what your referring to with "50% efficiency"? David SV0SGS Am 22.06.21 um 17:35 schrieb MIKE AI8Z:

I’ve had the same experience with various batteries versus a stiff, well-regulated 13.8 volt power supply. As the batteries age, they develop higher internal resistance. If you can monitor the

David, Having looked into LiFePO4 batteries... Not all are the same with output current capabilities.? The current is also dependent on the BMS used. For my use I have LiFePO4 batteries purchased RAW

No radio is 100% efficient. If you have more than one multi meter, go for both volts and current on the battery. If you have your charging circuit in place, take it off, too.

I will try the ammeter.? This is a commercially manufactured 12Ah LifePO4 battery.? To paraphrase a blue jeans commercial, nothing comes between my battery and my radio.? Ie no buck converter or

Hi, I powered my shack for many years from a 12v Lead acid truck battery. Eventually this gave up the ghost, in exactly the same way. I reckon that the batteries internal resistance was the cause as

Internal resistance of the Battery vs the Power Supply? Current capability of the battery vs power supply? Can you put an amp meter in the power circuit? If using any kind of buck converter /

Not really pi relevant, but Jason suggested I put my question/issue to the group.? So here it is. I have an offgrid shack and power my Yaesu FT-891 from a 12Ah LiFePO4 battery that is recharged with