Can you give us the tldr
The major takeaway isn’t even made clear in the abstract.
Clayton Nall http://www.nallresearch.com Cell: (617) 850-2062
On Sat, Mar 30, 2024 at 4:40 PM Wayne Beckman waynesbwf@gmail.com wrote:
This came from Santa Clara county ARES. _______________________________________________ SBARC-list mailing list -- sbarc-list@lists.netlojix.com To unsubscribe send an email to sbarc-list-leave@lists.netlojix.com
Clayton,
A summary of the study on the top sheet would have been very useful to the casual reader (ie most hams looking to decide which battery to buy).
Based on my cursory review, the most useful data appears to be the "Rule of Thumb for Battery Capacity” on page 19. Other than that, the rest of the document confirms what many already know:
LiFePO4 = light, provides a higher nominal voltage (13V+) and for a longer duration at a given capacity AGM/Pb = heavy, provides a lower nominal voltage (just above 12V) for less time at the same capacity
Unless cost is a deciding factor, there are few good reasons to operate portable (or even stationary on backup power) with AGM. LiFePO4 provides higher nominal voltages for more efficient operation for a longer duration at the same Ah rating.
Nearly all radios rated for 12VDC input actually are designed to operate at closer to 14V. So the LiFePO4 is better suited regardless. The fact that LiFePO4 is lighter and lasts longer at a given capacity is a bonus for stationary ops.
LCM
Levi C. Maaia, K6LCM k6lcm@maaia.com
www.levi.maaia.com
On March 31, 2024 at 00:39:32, Clayton Nall (clayton.nall@gmail.com) wrote:
Can you give us the tldr
The major takeaway isn’t even made clear in the abstract.
Clayton Nall http://www.nallresearch.com Cell: (617) 850-2062
On Sat, Mar 30, 2024 at 4:40 PM Wayne Beckman waynesbwf@gmail.com wrote: This came from Santa Clara county ARES. _______________________________________________ SBARC-list mailing list -- sbarc-list@lists.netlojix.com To unsubscribe send an email to sbarc-list-leave@lists.netlojix.com _______________________________________________ SBARC-list mailing list -- sbarc-list@lists.netlojix.com To unsubscribe send an email to sbarc-list-leave@lists.netlojix.com
Thank you Levi!
Clayton Nall http://www.nallresearch.com Cell: (617) 850-2062
On Sun, Mar 31, 2024 at 1:24 AM Levi C. Maaia, K6LCM k6lcm@maaia.com wrote:
Clayton,
A summary of the study on the top sheet would have been very useful to the casual reader (ie most hams looking to decide which battery to buy).
Based on my cursory review, the most useful data appears to be the "Rule of Thumb for Battery Capacity” on page 19. Other than that, the rest of the document confirms what many already know:
LiFePO4 = light, provides a higher nominal voltage (13V+) and for a longer duration at a given capacity AGM/Pb = heavy, provides a lower nominal voltage (just above 12V) for less time at the same capacity
Unless cost is a deciding factor, there are few good reasons to operate portable (or even stationary on backup power) with AGM. LiFePO4 provides higher nominal voltages for more efficient operation for a longer duration at the same Ah rating.
Nearly all radios rated for 12VDC input actually are designed to operate at closer to 14V. So the LiFePO4 is better suited regardless. The fact that LiFePO4 is lighter and lasts longer at a given capacity is a bonus for stationary ops.
LCM
*Levi C. Maaia, K6LCM* k6lcm@maaia.com
www.levi.maaia.com
On March 31, 2024 at 00:39:32, Clayton Nall (clayton.nall@gmail.com) wrote:
Can you give us the tldr
The major takeaway isn’t even made clear in the abstract.
Clayton Nall http://www.nallresearch.com Cell: (617) 850-2062
On Sat, Mar 30, 2024 at 4:40 PM Wayne Beckman waynesbwf@gmail.com wrote:
This came from Santa Clara county ARES. _______________________________________________ SBARC-list mailing list -- sbarc-list@lists.netlojix.com To unsubscribe send an email to sbarc-list-leave@lists.netlojix.com
SBARC-list mailing list -- sbarc-list@lists.netlojix.com To unsubscribe send an email to sbarc-list-leave@lists.netlojix.com
-
Clayton Nall -
Levi C. Maaia, K6LCM -
Wayne Beckman