Why New Zealand homeowners are choosing battery storage
A home battery helps you make more of the energy you generate, and puts it to work every day, giving your home control over how power is stored and used. Whether it’s evening use, staying powered when it matters, or a smart electricity plan, it’s your choice.
Maximise Your Solar
Store your solar and use it yourself in the evening, instead of sending it back to the grid, getting more value from every panel you install, year after year.
Power, Day and Night
Automatic backup keeps your home running, plus flexible charging means you can top up whenever suits you best, giving you reliable power around the clock.
Earn With Your Battery
Join a compatible VPP programme and your battery can earn you credits automatically, with no extra effort, turning stored energy into extra value.
Two Sizes, One Reliable Battery Platform
Every home’s energy needs are different. The SMILE M Series is built on the same dependable 13.99kWh LFP battery module, scaled to suit smaller households through to larger homes with bigger solar arrays.
SMILE M5
- 5kW single phase inverter
- 13.99 to 27.98kWh Battery (1 to 2 modules)
- Available as a hybrid inverter (SMILE M5 S, pairs with up to 10kW of solar across 2 MPPTs) or a battery only inverter (SMILE M5 B, AC coupled onto an existing solar system)
- Best suited to: standard NZ homes wanting solar self consumption plus outage backup
SMILE M10 S
- 10kW single phase inverter
- Battery: 13.99 to 27.98kWh (1 to 2 modules)
- Hybrid inverter supporting up to 20kW of solar across 4 MPPTs
- Best suited to: larger homes, bigger roofs, or households wanting more backup capacity and headroom to expand later
What's Inside a SMILE M Series Battery
All in One Cabinet Design
Inverter and battery in one compact, wall mounted unit, a tidy install with a small footprint, ideal for garages and outdoor walls.
VPP Ready
Compatible with Virtual Power Plant programmes, so your battery can potentially earn as well as save, supporting the grid at peak times in exchange for credits or payments.
Cell Level Fire Suppression
Built in aerosol fire suppression technology adds a layer of safety most standard battery systems don't have.
Fast, Guided Commissioning
Installer app handles CT clamp and meter self checks automatically, so your system is set up correctly from day one, less time on site, less room for error.
Up to 200% PV Input
Hybrid models support PV oversizing up to 200% of the inverter's rated output, so you can make full use of your available roof space now or in future.
Deep, Usable Capacity
High depth of discharge design means more of the kWh you pay for is actually usable, rather than reserved as buffer.
Manage It All From Your Phone
The AlphaESS Smart App gives you real time visibility into generation, storage, and usage, so you always know how your system is performing and how much you’re saving.
Techincal Specifications
Spec |
SMILE M5 S |
SMILE M10 S |
| Rated Output Power | 5kW | 10kW |
| Coupling | Hybrid inverter | Hybrid inverter |
| Battery Capacity | 13.99 to 27.98kWh (1 to 2 × 13.99kWh modules) | 13.99 to 27.98kWh |
| Battery Chemistry | LFP (LiFePO₄) | LFP (LiFePO₄) |
| Solar (PV) Input | Up to 10kW, 2 MPPTs | Up to 20kW, 4 MPPTs |
| Backup Switchover | UPS level (under 20ms) | UPS level (under 20ms) |
| Ingress Protection | IP65 | IP65 |
| Warranty | 10 years | 10 years |