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 > Simplest battery monitor and shunt? Advice for non-expert

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pianotuna

Regina, SK, Canada

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Posted: 12/16/21 10:23pm Link  |  Quote  |  Print  |  Notify Moderator

Skibane wrote:

pianotuna wrote:

Hi,

If you are NOT using Li batteries the very best meter may be the smartgauge. It actually tracks the "real" capacity. It checks the voltage several thousand times per minute.

http://www.smartgauge.co.uk/


I don't look at my meter several thousand times per minute.

Why would my meter need to make several thousand battery voltage measurements every minute?


Read about how it works at this link: https://marinehowto.com/smartgauge-battery-monitoring-unit/

* This post was edited 12/16/21 11:07pm by pianotuna *


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

2112

Texas

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Posted: 12/17/21 05:08am Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

Hi,

If you are NOT using Li batteries the very best meter may be the smartgauge. It actually tracks the "real" capacity. It checks the voltage several thousand times per minute.

http://www.smartgauge.co.uk/
Balmar sells the Smartgauge in the US.

It appears to have been replaced with the SG200. Same features and includes LiFePO4 capability. Very impressive system. I couldn't prove this but it appears to communicate using a CAN network.


2011 Ford F-150 EcoBoost SuperCab Max Tow, 2084# Payload, 11,300# Tow,
Timbrens, PullRite SuperGlide 2700 15K
2013 KZ Durango 2857


Matt_Colie

Southeast Michigan

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Posted: 12/17/21 10:08am Link  |  Quote  |  Print  |  Notify Moderator

While as an installer, I love the idea of the Victron Smart Shunt, it concerns me that it needs a smartphone. Many of my clients shut off the phone and pack it in a Pelican box on departure. These devices are not know to love sea water.

I don't have one because I really like the old Bogart Trimetric staring me in the face and being hard to ignore. If I have to fire up an app to know the status of the house bank, that is just too inconvenient for me as I have enough to do already.

Matt


Matt & Mary Colie
A sailor, his bride and their black dogs (one dear dog is waiting for us at the bridge) going to see some dry places that have Geocaches in a coach made the year we married.


3 tons

NV.

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Posted: 12/17/21 10:35am Link  |  Quote  |  Print  |  Notify Moderator

Skibane wrote:

pianotuna wrote:

Hi,

If you are NOT using Li batteries the very best meter may be the smartgauge. It actually tracks the "real" capacity. It checks the voltage several thousand times per minute.

http://www.smartgauge.co.uk/


I don't look at my meter several thousand times per minute.

Why would my meter need to make several thousand battery voltage measurements every minute?


I check the Smartguage meter out,
and having no shunt it appears to be strictly voltage based…Maybe I missed it, but it looks like they are keeping their SOC methodology a well kept secret (I donno??).

3 tons

2oldman

NM

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Posted: 12/17/21 10:38am Link  |  Quote  |  Print  |  Notify Moderator

Matt_Colie wrote:

While as an installer, I love the idea of the Victron Smart Shunt, it concerns me that it needs a smartphone.
I only wish every device had an app - and eventually they will. What bugs me is having to fork out more money just for a monitor for my inverter. And my smartphone doesn't see much seawater, or any water. It takes about 8 seconds to fire up the Victron app.

My phone is an integral part of being just about anywhere. I'm not 'camping' and getting away from it all, I'm just living somewhere else.

3 tons

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Posted: 12/17/21 10:42am Link  |  Quote  |  Print  |  Notify Moderator

2oldman wrote:

Matt_Colie wrote:

While as an installer, I love the idea of the Victron Smart Shunt, it concerns me that it needs a smartphone.
I only wish every device had an app - and eventually they will. What bugs me is having to fork out more money just for a monitor for my inverter. And my smartphone doesn't see much seawater, or any water.

My phone is an integral part of being just about anywhere. I'm not 'camping' and getting away from it all, I'm just living somewhere else.


Victrons BMV 12 doesn’t require a
smart phone

Skibane

San Antonio, TX

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Posted: 12/17/21 11:41am Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

Skibane wrote:

pianotuna wrote:

Hi,

If you are NOT using Li batteries the very best meter may be the smartgauge. It actually tracks the "real" capacity. It checks the voltage several thousand times per minute.

http://www.smartgauge.co.uk/


I don't look at my meter several thousand times per minute.

Why would my meter need to make several thousand battery voltage measurements every minute?


Read about how it works at this link: https://marinehowto.com/smartgauge-battery-monitoring-unit/


There isn't anything on that page which explains why it needs to measure battery voltage several thousand times a minute.

The word "minute" doesn't even appear on that page.

pianotuna

Regina, SK, Canada

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Joined: 12/18/2004

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Posted: 12/17/21 12:09pm Link  |  Quote  |  Print  |  Notify Moderator

Skibane wrote:

pianotuna wrote:

Skibane wrote:

pianotuna wrote:

Hi,

If you are NOT using Li batteries the very best meter may be the smartgauge. It actually tracks the "real" capacity. It checks the voltage several thousand times per minute.

http://www.smartgauge.co.uk/


I don't look at my meter several thousand times per minute.

Why would my meter need to make several thousand battery voltage measurements every minute?


Read about how it works at this link: https://marinehowto.com/smartgauge-battery-monitoring-unit/


There isn't anything on that page which explains why it needs to measure battery voltage several thousand times a minute.

The word "minute" doesn't even appear on that page.


It checks 1500 per second. When I was in school a second was part of a minute. But perhaps they don't teach that anymore.

Boon Docker

Mountain Foothills of Southern Alberta

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Posted: 12/17/21 12:13pm Link  |  Quote  |  Print  |  Notify Moderator

LOL

Skibane

San Antonio, TX

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Posted: 12/17/21 01:41pm Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

Skibane wrote:

pianotuna wrote:

Skibane wrote:

pianotuna wrote:

Hi,

If you are NOT using Li batteries the very best meter may be the smartgauge. It actually tracks the "real" capacity. It checks the voltage several thousand times per minute.

http://www.smartgauge.co.uk/


I don't look at my meter several thousand times per minute.

Why would my meter need to make several thousand battery voltage measurements every minute?


Read about how it works at this link: https://marinehowto.com/smartgauge-battery-monitoring-unit/


There isn't anything on that page which explains why it needs to measure battery voltage several thousand times a minute.

The word "minute" doesn't even appear on that page.


It checks 1500 per second. When I was in school a second was part of a minute. But perhaps they don't teach that anymore.


Why does that matter?

Why does my battery meter need to check its voltage 1500 times per second?

How is this a meaningful feature, and not just techno-babble?

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