Both sides previous revision
Previous revision
Next revision
|
Previous revision
Next revision
Both sides next revision
|
electrical:solar:tracer [2022/01/02 13:01] frater_secessus [quirks] |
electrical:solar:tracer [2022/02/04 14:47] frater_secessus [lithium compatibility] |
| |
| |
==== quirks ==== | ===== quirks ===== |
Some [[electrical:solar:charge_controller_setpoints|voltage setpoints]] are constrained in relationship to each other. Because of this it may be easiest to configure them in a particular order.((http://techluck.com/cgi-bin/YaBB.pl?num=1486955008)) This order places the configurations in increasing (or equal) voltages the way the controller wants it. | Some [[electrical:solar:charge_controller_setpoints|voltage setpoints]] are constrained in relationship to each other. Because of this it may be easiest to configure them in a particular order.((http://techluck.com/cgi-bin/YaBB.pl?num=1486955008)) This order places the configurations in increasing (or equal) voltages the way the controller wants it. |
- "Low Voltage Reconnect Voltage" | - "Low Voltage Reconnect Voltage" |
{{http://img.mousetrap.net/boondocking/MT-50_displayEvil.jpg?150 }} | {{http://img.mousetrap.net/boondocking/MT-50_displayEvil.jpg?150 }} |
Tracer (and the Renogy rebrands) refer to the **Absorption stage as "boost"**. This is an unforced error; the nonstandard term confuses newcomers and conflicts with the already-existing "[[electrical:solar:charge_controller#mppt|MPPT boost]]" term. | Tracer (and the Renogy rebrands) refer to the **Absorption stage as "boost"**. This is an unforced error; the nonstandard term confuses newcomers and conflicts with the already-existing "[[electrical:solar:charge_controller#mppt|MPPT boost]]" term. |
| |
| The LOAD icon (light bulb ON/OFF) indicates whether the LOAD terminals are powered, not whether or not anything is connected to them or consuming power. |
| |
| |
=== battery SOC icon === | === battery SOC icon === |
| |
| |
The **battery icon** found on many Tracer controllers is unnecessary and misleading. The manual claims it is a [[electrical:depth_of_discharge|State of Charge]] meter but there is no guide to reading it. Since the same voltage can result in different display during charging and non-charging scenarios, it may actually be useful to think of as a **charging indicator rather than state of charge indicator**. Secessus' unscientific observation reveals these weak correlations: | The **battery icon** found on many Tracer controllers is unnecessary and misleading. The manual claims it is a [[electrical:depth_of_discharge|State of Charge]] meter but there is no guide to reading it. Since the same voltage can result in different display during charging and non-charging scenarios, it may actually be useful to think of as a **charging indicator rather than state of charge indicator**. Secessus' unscientific observation reveals these weak correlations: |
| **0 bar / 0%: **| not charging| <= Vlvd| | | **0 bar / 0%: **| not charging| <= Vlvd| |
| |
The LOAD icon (light bulb ON/OFF) indicates whether the LOAD terminals are powered, not whether or not anything is connected to them or consuming power. | ===== lithium compatibility ===== |
| |
| EpEver says the Tracer series is not fully lithium compatible since they cannot "wake up" one whose BMS has shut down. [IMO this is an unnecessarily high criterion which other mfg do not adhere to. [[electrical:12v:drop-in_lifepo4#mythyou_can_t_charge_li_with_a_lead_battery_charger|Almost any configurable charger can be used for lithium]]. - secessus] |
| |
| There is anecdotal evidence that the PC software can configure the controller to stop charging below a given temperature. |
| |
| * [[https://www.youtube.com/watch?v=nihEFe0XJXU|Budget LiFePo4 Low-Temp Protection Solution & Test]] |
| * [[https://www.youtube.com/watch?v=qp1qbJu2N5I|MPPT low temp disconnect]] |
| |
| ===== models ===== |
==== A series ==== | ==== A series ==== |
{{https://images-na.ssl-images-amazon.com/images/I/51Ea6Qpt0zL._AC_UL160_SR160,160_.jpg }} | {{https://images-na.ssl-images-amazon.com/images/I/51Ea6Qpt0zL._AC_UL160_SR160,160_.jpg }} |