Charge Controller
Charge controllers are rated in open circuit amps, never exceed 80%.
PWM controller - small, simple and inexpensive. Power handling limited (e.g., 30 amps), and input volts (12V)
MPPT controller - more efficient, more expensive, can handle variable voltage inputs.
Frequent Questions: Charge Controllers (amsolar.com)
Charging Profile
Both [deep cycle and AGM batteries] should be cut-off at 11.6 volts to maintain long term viability of the battery in question (source). A battery that is discharged to 10.8 volts regularly and then recharged can expect to get 354 charging cycles out of the battery. A battery that is discharged to 11.6 volts regularly and then recharged can expect to get 900 to 1000 charges out of the battery.
Battery Management System (BMS)
Used to manage lithium battery packs.
Battery Tender 022-0165-Dl-Wh 12-Volt 2-Bank BMS (ebay)
- Match number of cells in battery and voltage exactly (cannot use 10 cell BMS with 7 cell battery). When BMS does not recognize correct voltage, will not allow battery to supply current.
- Use right BMS current rating (e.g., 15A BMS for a 15A controller). BMS can be rated higher.
DIY Lithium Battery - BMS Wiring - Part â…—
Frequent Questions: Charge Controllers (amsolar.com)
For the generic MPPT, this listing describes the battery types:
Full Voltage Value : Lithium Battery (12.2V) | B02 Colloidal Battery (14.2V) | B03 Open Cell (14.6V)
Hybrid Inverters / Controllers
https://www.must-solar.com/ph3000-single-phase-series-onoff-grid-hybrid-solar-inverter/
EA Sun Power MPPT 110Vac 4800W Solar Inverter 80A 24V Pure Sine Wave Inverter 60A AC Charger (ebay)
MPP Solar PIP-HS/MS/MG PF1 Series
Stackable feature of up to 6 units are only available on the 2424LV-HS and 2424LV-MSD models, increasing max output capacity up to 2.4KW x 6 = 14.4KW.