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melphelps avatar image
melphelps asked

New To BMV 712 help!

Hi there. Just got a BMV 712 fitted to our small Fiat Ducato camper van. Have got tge app on phone. Driving ot out for first time and SOC reads %100. We know the new battery losy charge as straight after having it fottes tge van ended up in a garage dor 2 months so was beeping when we picked it up. We charged for few hours on house socket but didnt re sync, should we have? If so do we charge it at home again tgen sync and if so how long does it take to charge?

Also how do yoy know how much charfe is in the battery? Is that SOC or something else and how low should it be allowed to go before driving to re charge. Sorry about all the questions. I wasnt there when fitted and hubby not tech savvy so im trying to work it all out :-)

charger
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1 Answer
Alexandra avatar image
Alexandra answered ·

@Melphelps

If it is anew install it can take one or two cyles to synchronise with the SOC correctly if the settings are right for your batteries. Not sure how many cycles it had before it sat.

How long the battery takes to charge depends on

  1. How much capacity the battery has (in amp hours) and how much it was discharged
  2. How fast or how many amps you are charging at for example 100AH lithium battery half discharged charging at 30 amps will take an hour and a half to charge.
  3. Your battery type as some need longer absorption times and are less efficient that other types. For example lead acid compared to lithium.


Victron have a youtube channel with short instructional videos like this one https://www.google.com/url?q=https://m.youtube.com/watch%3Fv%3D4ReljfO3k6M&sa=U&ved=2ahUKEwj73Lyi7_XtAhXPNcAKHakvAmAQtwIwBHoECAQQAQ&usg=AOvVaw29LK3Y8t1Z_Y2LdIHfSoX- If you want to learn more


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