Compare Sol-Max Battery Systems
Compare capacity, performance, installation requirements, expandability, and key features to determine which Sol-Max battery best fits your project.
Server Rack Battery
Powerflo5
Energy capacity
5.12 kWh
Nominal voltage
51.2 V
Form factor
Server Rack Battery
Installation
Indoor installation
A compact, modular server-rack battery designed for residential, commercial, industrial, off-grid, grid-tied, and self-consumption applications.
View Powerflo5
Wall/Floor Mount Battery
Powerflo16
Energy capacity
16 kWh
Nominal voltage
51.2 V
Form factor
Wall/Floor Mount Battery
Installation
Indoor and outdoor installation
A high-capacity wall- or floor-mounted battery designed for larger residential, commercial, industrial, off-grid, grid-tied, and self-consumption applications.
View Powerflo16Which Battery Fits Your Project?
Neither battery is universally better. The right choice depends on your system design, location, capacity requirements, and installation conditions.
Powerflo5 may be better for:
- Smaller residential systems
- Modular rack-based installations
- Projects requiring gradual capacity expansion
- Indoor installations
- Lower individual battery weight
- Applications where a smaller battery module is preferred
Powerflo16 may be better for:
- Whole-home backup
- Larger residential or commercial systems
- Higher power requirements
- Outdoor installations
- Higher energy density
- Longer design life and warranty
- Larger total system capacity
Side-by-Side Comparison
| Specification | Powerflo5Server Rack Battery | Powerflo16Wall/Floor Mount Battery |
|---|---|---|
| General | ||
| Product type | Server rack battery | Wall/Floor mount battery |
| Energy capacity | 5.12 kWh | 16.076 kWh |
| Nominal voltage | 51.2 V | 51.2 V |
| Nominal capacity | 100 Ah | 314 Ah |
| Battery chemistry | Lithium Iron Phosphate (LFP) | Lithium Iron Phosphate (LFP) |
| Life and Warranty | ||
| Cycle life | 6,000 cycles at 77°F / 25°C, 80% DOD, 0.5C/0.5C | 8,000 cycles at 77°F / 25°C, 80% DOD, 0.5C/0.5C |
| Design life | 15 years | 20 years |
| Warranty | 10 years | 15 years |
| Electrical Characteristics | ||
| Operating voltage | 46.4–57.6 V | 46.4–57.6 V |
| Communication interfaces | CAN / RS485 / RS232 | CAN / RS485 / RS232 |
| Continuous charging power | 75 A / 3.84 kW | 160 A / 8.192 kW |
| Continuous discharging power | 75 A / 3.84 kW | 160 A / 8.192 kW |
| Maximum discharging power | 100 A / 5.12 kW | 210 A / 10.752 kW |
| Expandability | ||
| Units in parallel | Up to 20 units | Up to 20 units |
| Maximum stated system capacity | Up to 100 kWh | Up to 320 kWh |
| Installation and Environment | ||
| Environment | Indoor, Type 1, non-condensing | Indoor and outdoor |
| IP rating | IP20 | IP65 |
| Installation | Rack mount | Wall mount or floor mount |
| Dimensions | 17.7 × 17.4 × 5.2 in | 31.50 × 19.69 × 8.94 in |
| Weight | 96.5 lb | 284 lb |
| Cooling | Natural convection | Natural convection |
| Temperature | ||
| Charging temperature | 32°F to 122°F | 32°F to 122°F |
| Discharging temperature | -4°F to 140°F | -4°F to 140°F |
| Storage temperature | 32°F to 77°F | 32°F to 77°F |
| Maximum altitude | 9,843 ft | 9,843 ft |
Battery heating note: When battery cells are below 50°F and the battery is charging, the internal heating pads begin operating. Charging begins when cell temperature is within the supported charging range.
Feature Comparison
Shared by both products
- Lithium Iron Phosphate battery chemistry
- A+ grade battery cells
- Battery management system with multi-level protection
- Automatic battery addressing
- No DIP-switch programming required
- Automatic inverter protocol identification
- Closed-loop communication with the Sol-Max AIO inverter
- MNPower Assistant monitoring
- Bluetooth or optional software monitoring
- Remote BMS firmware upgrades with the Sol-Max AIO inverter
- Built-in battery heating
- PYLON protocol compatibility
- UL 1973
- UL 9540A
- UL 9540
Powerflo5 highlights
- Compact server-rack design
- Lower individual unit weight
- Modular rack-based expansion
- Up to 100 kWh total stated capacity
Powerflo16 highlights
- Higher energy capacity per battery
- Higher continuous charge and discharge power
- Higher maximum discharge power
- IP65 indoor/outdoor rating
- Active balancing at 2 amps
- Module-level endothermic decomposition and cooling fire extinguishing
- Higher energy density
- Up to 320 kWh total stated capacity
- Longer design life
- Longer warranty
Ready to choose your Sol-Max battery?
Explore each product in detail, find a local distributor, or talk with our team.