Book A Meeting

Battery Back-up Systems

SustainSolar’s battery back-up solutions are ideal for apartments, home offices, and small to medium size houses. The slick and modular configuration of the single phase 3 kW, 5 kW and three phase 10 kW systems allow for a variety of household applications.

TURN KEY HYBRID ENERGY STORAGE CABINET

Energy storage systems that make your life easier

image

COMPACT & MODULAR

  • Complete turn key system seamlessly integrated inside a sleek and robust cabinet​
  • Installation time and costs significantly reduced with ease of re-location, compared to conventional wall mount installations​
  • Connection of multiple units in parallel for modular expansion of system capacity​
  • 12kW option of the SUSTAIN BOXTM can be disassembled in two halves for ease of transport in remote or challenging locations

HIGH PERFORMANCE

  • High energy density LFP batteries >6000 cycles​
  • Powerful hybrid inverter for grid-tied and off-grid applications​
  • Up to 10-year warranty

ADVANCED CONTROL

  • Wi-Fi communication and control features with remote monitoring of system via user friendly App​
  • BMU monitoring for safe operation
  • Inverter display accessible with locked cabinet

PLUG & PLAY

  • All-in-one battery back-up solution for loadshedding​
  • Allows for integration of grid and generator​
  • “PV-ready” via MC4 connectors at the back of each unit​
  • Integrated power plug for emergencies

APPLICATIONS

  • Residential back-up​
  • SolarPV self-consumption optimisation and​
  • Small scale off-grid (e.g., health clinics, etc.)​

Our Available Turn Key Hybrid Energy Storage Cabinets

SUSTAIN
BOX™ 7.6
5.3 kWh
  • 7.6 kW SUNSYNK Hybrid Inverter (Single Phase)​
  • 5.3 kWh LFP Battery Built-in (1 C)​
  • Modular Expansion up to 15 kWh (3X5.3 kWh)​
  • 24/7 Monitoring with SUNSYNK app​
  • Easy installation and low maintenance​
  • With optional PV integration
SUSTAIN BOX™ 7.6​
10.6 kWh
  • 7.6 kW SUNSYNK Hybrid Inverter (Single Phase)​
  • 10.6 kWh LFP Battery Built-in (1 C)​
  • Modular Expansion up to 15 kWh (3X5.3 kWh)​
  • 24/7 Monitoring with SUNSYNK app​
  • Easy installation and low maintenance​
  • With optional PV integration
SUSTAIN
BOX™ 7.6
15.9 kWh
  • 7.6 kW SUNSYNK Hybrid Inverter (Single Phase)​
  • 15.9 kWh LFP Battery Built-in (1 C)​
  • Modular Expansion up to 15 kWh (3X5.3 kWh)​
  • 24/7 Monitoring with SUNSYNK app​
  • Easy installation and low maintenance​
  • With optional PV integration
SUSTAIN BOX™ 12
14.3 kWh
  • 12 kW SUNSYNK Hybrid Inverter (Single Phase)​
  • 14.3 kWh LFP Battery Built-in (1 C)​
  • Modular Expansion up to 28.6 kWh (2X14.3 kWh)
  • 24/7 Monitoring with SUNSYNK app​
  • Easy installation and low maintenance​
  • With optional PV integration
SUSTAIN
BOX™ 7.6
28.6 kWh
  • 12 kW SUNSYNK Hybrid Inverter (Single Phase)​
  • 28.6 kWh LFP Battery Built-in (1 C)​
  • Modular Expansion up to 28.6 kWh (2X14.3 kWh)
  • 24/7 Monitoring with SUNSYNK app​
  • Easy installation and low maintenance​
  • With optional PV integration

We are committed to creating a cleaner, greener future through innovative solar and renewable energy services.

Jki-facebook-f Jki-instagram Linkedin

Subscribe to our news

Subscribe to our newsletter and get a notification about new insight

Quick Links

Applications

Contact Info

Contact Info

© SustainSolar East Africa. All Right Reserved 2026.