[RE-wrenches] Disable refloat

[Starlight]

Have you set up “Rebulk Voltage” in the advanced menu?



On Dec 12, 2025, at 9:10 AM, Starlight via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:

Hello Drake, 
Absorption is the phase where voltage remains constant. Until the Absorb voltage value is achieved, you will be bulk charging. You can only force Float or Bulk. 

Larry Crutcher
Starlight Power Systems






On Dec 12, 2025, at 8:58 AM, Drake Chamberlin via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:

Hi Jay,

The system feeds the grid through an SMA H-FUS inverter. The Outbacks are off grid inverters, but are AC coupled to the batteries to provide power when the grid is down. 

The inverters monitor the batteries and go into REFLOAT when the batteries hit 25 volts. I would like the inverters to go strait into the ABSORB cycle instead of going to REFLOAT.
 
The grid tie came after the the Outbacks were already in as a backup system. 
 
Thank you,
 
Drake
 
Drake Chamberlin

Athens Electric LLC

Ohio Electrical Contractor’s License 44810

NABCEP Certified PV Installation Professional

 

---
 


On 2025-12-11 10:54, Jay via RE-wrenches wrote:
> 
> Hi drake. 
> 
> You’re talking about the inverters charging the battereis, meaning
> this is a grid connected system?
> 
> Do you have a mate3/s or 1?
> 
> Jay
> 
>> On Dec 11, 2025, at 7:39 AM, Drake Chamberlin via RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>> wrote:
>> 
>> 
>> Hello Wrenches,
>> 
>> We have a rental property with two, stacked VFX 3524 inverters. In the winter the batteries don't get an adequate solar charge. I would like to have the batteries get a bulk charge when the voltage drops to 24 volts, but it keeps hitting refloat.
>> 
>> How do I disable refloat? Can I just set the refloat time to zero?
>> 
>> Thank you,
>> 
>> Drake
>> 
>> --
>> 
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