⚡ What are Sunsynk High-Voltage Batteries
Sunsynk HV batteries are lithium-iron-phosphate (LiFePO₄) battery systems designed for “high-voltage” energy storage — intended for larger solar + battery + inverter installations. pvpower.co.za+2Sunsynk+2
Instead of a simple 48 V battery bank, the HV system uses multiple modules in series to deliver a high nominal voltage (typically several hundred volts), making it suitable for more powerful inverters and larger energy demands. Solar Shop+2Grid Solutions+2
🔋 Key Features & Specifications
Modular & Scalable Design — Each module has a capacity of 5.12 kWh. You can combine up to 12 modules in series for a total storage capacity of 61.44 kWh. pvpower.co.za+2kathexsolar.co.za+2
High Operating Voltage — Typical operating voltage range is in the hundreds of volts (e.g. for a full 12-module bank), enabling efficient connection to high-voltage inverters and handling of larger loads. bshockedelectrical.co.za+2Grid Solutions+2
Strong Performance — Continuous charge/discharge rating at “1C”, meaning the battery can deliver its full energy capacity in roughly one hour under full load — giving robust power for large homes, commercial, or industrial applications. kathexsolar.co.za+1
Good Depth of Discharge (DoD) — Many HV battery packs are rated for 90% DoD, allowing a high proportion of stored energy to be used before recharging. Newsphere Solar (Pty) Ltd+2Solar Shop+2
Longevity & Durability — Designed for many charge/discharge cycles (often 6,000+ cycles at recommended DoD), giving a long service life under typical use. bshockedelectrical.co.za+2Grid Solutions+2
Rack-mount & Integrated System — HV batteries come in rack-mounted cabinets with integrated Battery Management Unit (BMU), making installation neat, modular, and service-friendly. Newsphere Solar (Pty) Ltd+2Shop Solar+2
Flexible Scalability — You can configure smaller banks (fewer modules) or expand to larger capacities. Some suppliers quote support for many stacks in parallel (for very large installations) depending on demand. kathexsolar.co.za+2bshockedelectrical.co.za+2
🏠 Who It’s For — Typical Use Cases
Sunsynk HV batteries are ideal when energy needs go beyond typical residential use:
Large homes or estates, especially with heavy usage (multiple appliances, heating/cooling, pumps, workshop equipment).
Farms, agricultural or rural properties — where you may power pumps, machinery, water systems, or large loads reliably off-grid or during load shedding.
Commercial, small-industrial or workshop setups — warehouses, small factories, farms, or businesses needing stable, large-scale power and backup storage.
Hybrid solar + storage + grid/generator systems — when you combine PV arrays with HV battery bank and a high-voltage inverter, for a scalable, high-capacity energy system.
Installations that may grow over time — modular design allows adding more battery modules later without replacing the entire bank.
✅ Why HV Batteries Make Sense for Deltool’s Market
Given Deltool’s focus — renewable energy systems, clients in semi-rural or rural areas (like Mpumalanga, farming or former-mining towns), properties with moderate-to-high load needs — HV batteries give:
High storage and power capacity to support heavy loads (pumps, water systems, workshops, appliances).
Scalability — you can start moderate and expand storage as needs grow.
Reliable backup and grid-independent operation — useful where grid supply is unstable or for off-grid/rural clients.
A professional, modular system approach, aligning with Deltool’s sustainable-living, self-sufficiency and quality-installation ethos.


