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electrical:solar:status [2023/09/22 11:35] frater_secessus [setups with no float] |
electrical:solar:status [2023/09/22 11:44] frater_secessus [setups with no float] |
=== Renogy confusion === | === Renogy confusion === |
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By default Renogy Li profiles work this way, and cause much concern for Renogy users who have not read their manuals and/or do not understand how solar charge controllers work. The required information is present [[https://www.renogy.com/support/downloads|in the manuals]] but Renogy should spell it out for the unfamiliar. | By default Renogy Li profiles work this way, and cause much concern for Renogy users who have not read their manuals and/or who are not familiar with how solar charge controllers / chargers work. [The required information is present [[https://www.renogy.com/support/downloads|in the manuals]] but Renogy really should spell it out for first-timers. -- secessus] |
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* Rover series - the table on page 37 of [[https://www.renogy.com/content/RNG-CTRL-RVR40/RVR203040-Manual.pdf|the manual]] shows there is no boost duration and no float in the Li profile. The "boost return voltage" field shows **13.2v**. | * **Rover series** - the table on page 37 of [[https://www.renogy.com/content/RNG-CTRL-RVR40/RVR203040-Manual.pdf|the manual]] shows there is no boost duration and no float in the Li profile. The "boost return voltage" field shows **13.2v**. |
* DC-DC/MPPT combo charger - the table on page 2 of [[https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf|the manual]] shows there is no boost duration and no float in the Li profile. The "boost return voltage" field shows **13.2v**. | * **DC-DC/MPPT combo charger** - the table on page 2 of [[https://www.renogy.com/content/RBC3050D1S-G1/RBC3050D1S-Manual.pdf|the manual]] shows there is no boost duration and no float in the Li profile. The "boost return voltage" field shows **13.2v**. |
* DC-DC charger (20A/40A/60A) | * **DC-DC charger** (20A/40A/60A) |
* page 18 says "lithium batteries will only have an absorption charge and no float charge" | * page 18 says "lithium batteries will only have an absorption charge and no float charge" |
* there is no setting for Float charge, as shown in the table on page 17 of [[https://www.renogy.com/content/RNG-DCC1212-60-BC/DCC1212-204060-Manual.pdf|the manual]] and it says "for lithium... there will not be a float voltage" | * there is no setting for Float charge, as shown in the table on page 17 of [[https://www.renogy.com/content/RNG-DCC1212-60-BC/DCC1212-204060-Manual.pdf|the manual]] and it says "for lithium... there will not be a float voltage" |
* the manual does not state the 13.2v boost return setpoint [an egregious error - secessus] | * the manual does not state the 13.2v boost return setpoint [an egregious error - secessus] |
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If users do not like this behavior they can set up the USER profile to their liking, for devices that support it. | Users uncomfortable with this behavior can set up the USER profile to meet their needs, including defining [[electrical:12v:drop-in_lifepo4#mythyou_shouldn_t_float_lithium|a quasi-Float setpoint]]. |
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==== in float ==== | ==== in float ==== |
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