Sol Stack Batteries are compatible with most equipment in the market today, as long as that equipment is designed to pair with a standard DC coupled battery.
SYSTEMS WITH NET METERING
If your system has net metering AND has a serial inverter that supports a DC battery (Deye, Sol Ark, Outback, Victron - see next section) then your system can support a Sol Stack Battery without any modifications.
If your system has only micro inverters, or has a serial inverter made for net metering only (SMA/SunnyBoy), see this article for details regarding what modifications will have to be made to support a standard DC coupled battery.
Hint: if your system has batteries already, and they are not Tesla or Franklin brand, then it is likely compatible with our batteries already. If you have Tesla or Franklin brands, these are AC coupled batteries, and you should read the article linked above.
SYSTEMS WITHOUT NET METERING
If your system does not have net metering, then compatibility is almost certain, if your inverter/charge controller are less then 5 years old (or is a major brand more than 5 years old).
Compatibility with Inverting Function of Inverter:
If your inverter allows for configuration of battery parameters, then it is probably compatible, in terms of connecting to and using the battery for power supply. The key to this is that the low voltage cutoff can be set to 48v (for 48v system), or 24v (for 24v system).
Note: If your inverter does not allow for configuration of the low voltage cutoff (or the cutoff cannot be set to the proper value), this can be remedied using an inexpensive voltage controlled transfer switch that will automatically switch the house back to grid power if the battery falls too low.
Compatibility with Charging Function of Inverter and/or Charge Controller:
If your inverter has a built in battery charging function that can charge the battery from the grid (and the grid is connected to it), then it is important that the inverter's battery charging settings are configurable. This also applies to stand-alone charge controllers.
The key settings that must be available to be compatible with Lithium batteries are:
- Bulk/absorb charge voltage - must allow for setting 55.2v for 48v systems, and 27.6v for 24v systems.
- Float charge voltage - must allow for setting 54.8 for 48v systems, and 27.4v for 24v systems.
- Equalize Charge - MUST be able to be disabled completely. (Lithium batteries should not be equalized)
- Charge Cycle - this is not required, but is better for Lithium batteries if float charging can be disabled (for example, some have setting for 2 Stage, or No Float).
Common Inverters/Charge Controllers That are Known Compatible:
This is not a complete list, only the most common ones. If yours is not listed and you are unsure if it is compatible, contact our support with the brand and model numbers of your equipment and we will verify compatibility for you.
- Schneider Connext Series (all inverters and charge controllers)
- Outback Radian Series Inverters
- Outback Flexmax Charge Controllers
- EG4
- Sol Ark
- Deye
- Sunsmart
- MPP Solar (any model made in last 5 years)
- LuxPower
- Voltronics inverters (sold under MPP Solar, Sigineer, PowMr, EG4 and many other brands)
- Victron