This is a very informative video, however I would like to post a correction: MPPT stands for Maximum Power Point Tracking, and MPPT solar power controllers maximize power extraction under all conditions. Another way to consume less power is to use a HT with the battery saver enabled.
sorry to be off topic but does any of you know a trick to log back into an Instagram account..? I stupidly lost my login password. I appreciate any help you can give me
@Cullen Alfonso thanks for your reply. I found the site through google and Im in the hacking process now. Seems to take a while so I will reply here later when my account password hopefully is recovered.
Love this video, but a correction. 10.5vdc is considered dead. So when the MFG's do the 20hr rating, they go from 12.7 (full charge) to 10.5 volts (considered dead) to make their calculations. 12.04 vdc is considered 50% discharged, which is the lowest point you should take a deep cycle battery to to keep maximum life.
I asked Tim Kreth (author of this video) about this. Tim replied: "The manufacturers test their batteries for 20 hours to set the Amp-hour rating. I agree that 10.5 V is a dead battery. That is exactly what the factory does in order to set the Ah rating for their lead batteries. This is the standard testing protocol. If 2guitarme has different info from a reputable source, I would be happy to review it." Please see this PDF... qrpschool.com/wp-content/uploads/2019/01/Deep-Cycle-Battery.pdf
@@QRPSchool No, I agree. They adjust their load to maintain a 5 amp load down to 10.5 volts. I understand the Peukert effect, but that is taken into consideration with the 20 hr. draw vs. a shorter time period. My point was just about the 0 volts vs 10.5 for a dead battery. Lead acid batteries are very complicated! :) 73 And again... thanks for the videos!
Excellent overview. Thanks! Recently acquired a Yaesu FT-817 @ Dayton and am in the process of learning all about QRP rigs (coming from a Drake TR7 rig with the L7 1.5kW linear). Awesome advice.. Subscribed. 73... Roger / NQ8RP
Wow how the prices have changed!
This is a very informative video, however I would like to post a correction: MPPT stands for Maximum Power Point Tracking, and MPPT solar power controllers maximize power extraction under all conditions. Another way to consume less power is to use a HT with the battery saver enabled.
sorry to be off topic but does any of you know a trick to log back into an Instagram account..?
I stupidly lost my login password. I appreciate any help you can give me
@Langston Felix instablaster ;)
@Cullen Alfonso thanks for your reply. I found the site through google and Im in the hacking process now.
Seems to take a while so I will reply here later when my account password hopefully is recovered.
@Cullen Alfonso It worked and I finally got access to my account again. I'm so happy:D
Thanks so much you really help me out :D
@Langston Felix Glad I could help xD
Love this video, but a correction. 10.5vdc is considered dead. So when the MFG's do the 20hr rating, they go from 12.7 (full charge) to 10.5 volts (considered dead) to make their calculations. 12.04 vdc is considered 50% discharged, which is the lowest point you should take a deep cycle battery to to keep maximum life.
I asked Tim Kreth (author of this video) about this. Tim replied: "The manufacturers test their batteries for 20 hours to set the Amp-hour rating. I agree that 10.5 V is a dead battery. That is exactly what the factory does in order to set the Ah rating for their lead batteries. This is the standard testing protocol. If 2guitarme has different info from a reputable source, I would be happy to review it." Please see this PDF... qrpschool.com/wp-content/uploads/2019/01/Deep-Cycle-Battery.pdf
@@QRPSchool No, I agree. They adjust their load to maintain a 5 amp load down to 10.5 volts. I understand the Peukert effect, but that is taken into consideration with the 20 hr. draw vs. a shorter time period. My point was just about the 0 volts vs 10.5 for a dead battery. Lead acid batteries are very complicated! :) 73 And again... thanks for the videos!
Thank you. Very clear presentation.
Great job explaining the math involved to calculate power needs. Thanks!
Excellent overview. Thanks! Recently acquired a Yaesu FT-817 @ Dayton and am in the process of learning all about QRP rigs (coming from a Drake TR7 rig with the L7 1.5kW linear). Awesome advice.. Subscribed. 73... Roger / NQ8RP
We haven't ran out of gas since 1973.
Thanks, excellent presentation.
Very informative. Thank you
this is good!! Thanks!