Solarphile Posted November 24, 2020 Share Posted November 24, 2020 Hi Guys I am looking for some feedback from those who have or have used this item below that Bain sells. I know it makes an estimated guess based on voltage, but how accurate are they really? Does anyone have one and what is it like at estimating SOC of lithium batteries? Quote Link to comment Share on other sites More sharing options...
Alex Posted December 2, 2020 Share Posted December 2, 2020 The only way to know for sure to a degree of accuracy is to track the amps in/out of the battery, voltage trackers will give you an estimate. LifePO4 is more stable than Lead-Acid in term of voltages so it should give you a good idea but I wouldn't trust these on Lead-Acid batteries. I recently got myself a Victron Energy SmartShunt 500A/50mV, lovely piece of equipment! Quote Link to comment Share on other sites More sharing options...
Solarphile Posted December 3, 2020 Author Share Posted December 3, 2020 I decided to order one and do some real life testing to see how accurate it is. If it is accurate within 10% I will be satisfied. I am awaiting delivery of the item. 8 hours ago, Alex said: I recently got myself a Victron Energy SmartShunt 500A/50mV, lovely piece of equipment! I am sure this comes at a lovely price too I suppose the Victron BMV is the best option, but at R2500 it is a little out of my budget right now. Quote Link to comment Share on other sites More sharing options...
Alex Posted December 3, 2020 Share Posted December 3, 2020 (edited) Same I’ve wanted a Victron BMV for years but couldn’t afford one. The SmartShunt is a new product (never seen it before) it’s the BMV without the display which connects via Bluetooth. Got one for R2100 over Black Friday. Worth the years of waiting, gives me reliable information. Edited December 3, 2020 by Alex Solarphile 1 Quote Link to comment Share on other sites More sharing options...
Solarphile Posted December 3, 2020 Author Share Posted December 3, 2020 1 hour ago, Alex said: SmartShunt Wow that is nice! Simple installation, minimal wires. I like it. The only gripe I would have with this system is that I cannot see the SOC at a glance. But don’t get me wrong, this is a very nice piece of tech. Quote Link to comment Share on other sites More sharing options...
Luminous Posted December 3, 2020 Share Posted December 3, 2020 I bought a 200a shunt with a 16bit ADC and will link that up to a nodemcu and access the data over the internet. Will see how it turns out. Solarphile and shanghailoz 2 Quote Link to comment Share on other sites More sharing options...
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