Smartsolar 100/50 firm...update 6/9/2025

So i did my firm. update ! comparing yesterday i was able to go on float all day , now as i did the update , does not stay on float and goes to bulk rather quikly , battery is a 230ah Litime , so my question is , does the new update keeps the battery full all the time ? should i turn off the mppt for the day and on next morning ? Is like bulk mode every 30min. or so :flushed_face: , battery at 99% …float does not stays on for long !

 Any help will be great !

Please help by posting the “battery settings” configuratuion?





Thank you.
1st check: Measure the Volt drop between the battery positive terminal and the MPPT battery positive whilst charging at >14A, similarly the Volt drop on the negative side. These should both be <25mV.
2nd: Try turning on expert mode, and increase the ‘rebulk’ voltage offset.
From the history data, the MPPT is spending a good amount of time in float mode. The MPPT will automatically start in Bulk mode every morning, and then move through absorption to float, and stay there as long as the PV is providing adequate power (enough to supply the load and float the battery). Once the PV drops for the day, the bulk light will flash.

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OMG , thank you !! i was just looking how to go back to factory reset ! So that means that if the battery goes full , the two solar panels (2 longi 365w) , will provide for load , insted of the battery , until needed ? please correct me ! The regular load i have is no more than 300w from a fridge (1.7 ah) ,two fans a tv set and led lights to be use only when needed ! it goes down after defrosting cycle to 104w of load …

yes, that’s the idea. This saves on cycling energy through the battery, which wears it out.

Thank you , i was so worry , that the new update ,was messing all up ! :+1: have a great day !! Mike ! :smiling_face_with_sunglasses: