Forum Discussion
MrWizard
Nov 18, 2020Moderator
Charging inefficiency is a problem that never goes away with any lead acid battery, and only gets worse as the battery ages,
That's why an auto reset monitor, is not as important to me , as knowing my batteries and system,I know by looking at the charge amps near the end of cycle, the monitor already says 100%,
What's important to me, is the discharge count and the SOC from my use, so I know how many Amp hrs were used, Capacity (50% ,70%, 90% ?) right now
I know whether I must charge right away or have sufficient unused capacity to hold me until later in the day,
I do not know how many Amp hrs recharge it takes to replace 100 Amp hrs used, 5 more, 10 more, 15 more ??
And it's been many years since I even attempted to find out, when I tried I had (2) amp counting power meters wired in series with the house batteries in a different MH, identical meters,they only counted one direction, so I installed them in reverse to each other, one only counted discharge , the other only counted charging , I reset them each day at the end of that days recharge, I don't remember the numbers, but the recharge to full, goto float, was more than I expected, no MW no coffee maker , a 300w inverter for the laptop, tv, and phones, it was about 2005 I think, maybe before then
This monitor I have now, is the best one I have used, the most useful,the most info
I will try to find the brand/model info, it's been almost 3 years, and I think the seller was in kentucky, I'm thinking this was on eBay,
BTW the display/control module (in the picture) is powered 5v usb, and is wireless,
The brain module and the Hall Effect Sensor are located at the 198 ampHR Deka 4D AGM that is one half of my 400 AmpHR battery bank, there is No Wiring connecting the 2 modules, I can move the display any where in the RV, without changing any wiring
That's why an auto reset monitor, is not as important to me , as knowing my batteries and system,I know by looking at the charge amps near the end of cycle, the monitor already says 100%,
What's important to me, is the discharge count and the SOC from my use, so I know how many Amp hrs were used, Capacity (50% ,70%, 90% ?) right now
I know whether I must charge right away or have sufficient unused capacity to hold me until later in the day,
I do not know how many Amp hrs recharge it takes to replace 100 Amp hrs used, 5 more, 10 more, 15 more ??
And it's been many years since I even attempted to find out, when I tried I had (2) amp counting power meters wired in series with the house batteries in a different MH, identical meters,they only counted one direction, so I installed them in reverse to each other, one only counted discharge , the other only counted charging , I reset them each day at the end of that days recharge, I don't remember the numbers, but the recharge to full, goto float, was more than I expected, no MW no coffee maker , a 300w inverter for the laptop, tv, and phones, it was about 2005 I think, maybe before then
This monitor I have now, is the best one I have used, the most useful,the most info
I will try to find the brand/model info, it's been almost 3 years, and I think the seller was in kentucky, I'm thinking this was on eBay,
BTW the display/control module (in the picture) is powered 5v usb, and is wireless,
The brain module and the Hall Effect Sensor are located at the 198 ampHR Deka 4D AGM that is one half of my 400 AmpHR battery bank, there is No Wiring connecting the 2 modules, I can move the display any where in the RV, without changing any wiring
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