Solar batteries give you control over how and when you use the energy your system generates. They store excess power for later, helping you cut your bills, stay powered during outages and rely less on the grid.
Modern lithium batteries have made a big leap forward in recent years. They last longer, charge faster and require little to no maintenance, making them ideal for homes, farms and commercial sites across New Zealand.
For properties in rural areas or places with frequent network issues, a battery also provides a reliable layer of security. It keeps essential equipment running when the grid goes down and supports your daily energy needs year-round.
With today’s performance and value, solar batteries have become one of the most effective ways to improve energy independence and get more from your solar powered system.
BYD has developed market leading battery storage solutions suitable for any application. The modular low voltage (LV) and high voltage (HV) lines provide unparalleled flexibility for any residential or commercial purpose.
Solar batteries store the excess energy your panels produce during the day so you can use it whenever you need it – at night, during cloudy weather or at times of high demand. Instead of sending all unused power back to the grid, the battery holds it for your home or farm to use first.
A battery also reduces how much electricity you draw from the grid, lowering your bills and giving you far more control over your energy use. For off-grid properties, the battery acts as the main power source when the sun is not shining, keeping essential systems running around the clock.
Modern batteries also provide protection during power outages. When the grid fails, the battery steps in automatically, supplying clean, quiet backup power to keep lights, appliances and key equipment running safely.
Solar batteries deliver strong day-to-day benefits across homes, farms and rural sites in New Zealand.
For homes, a battery can comfortably support:
For commercial sites, batteries support:
For farms and agricultural sites, batteries support:
Choosing the right battery size is essential for stable and reliable performance. The ideal setup depends on how much energy you use, when you use it and whether the property is grid-tied or off-grid.
For most homes, battery sizing is based on:
For farms and commercial sites, sizing also considers:
Off-grid systems usually require more storage to cover longer periods of low sunlight or high demand. This may involve multiple batteries working together to supply consistent power.
We assess your usage patterns and calculate the storage you need to stay powered day and night. If your energy use increases later, most systems can be expanded by adding extra battery modules.
BYD batteries are a strong choice for homes, farms and commercial sites looking for reliable, long-lasting solar storage. Using safe lithium iron phosphate (LFP) chemistry, these batteries offer stable performance, long cycle life and high thermal safety – making them well suited to New Zealand conditions.
One of the key advantages of BYD batteries is their modular design. Each unit can be stacked or expanded as your energy needs grow, whether you are adding more appliances, increasing business load or moving towards greater off-grid capability. This makes them flexible for both small and large installations.
BYD batteries work with a wide range of hybrid and off-grid inverter systems, making them easy to integrate into new solar installations or upgrades of existing systems. They provide fast charging, strong discharge rates and consistent performance across daily use, giving you dependable power through the year.
Most BYD models come with a 10-year warranty, backed by a company with proven global experience in energy storage and electric transport.
Part of the award-winning HV line, the HVS provides the highest voltage per module of any of the BYD batteries.
While an excellent all-around battery, particularly for grid-tie systems, the extra kick is great for applications that have high start-up loads.
2 to 5 HVS battery modules can be connected in series in one ‘Battery-Box’ (stack), providing 5.1 to 12.8 kWh of capacity.
Additionally, connection of up to 3 identical HVS Battery-Boxes allows a maximum capacity of 38.4 kWh.
If you want to start out smaller, the ability to scale by adding HVS modules or HVS Battery-Boxes later is always there.
Along with the HVM model, and as the result of substantial collaboration between Fronius and BYD, the HVS model is one of the only batteries that integrates with the Fronius Gen24 range of inverters when operating as a hybrid (do-it-all) grid-tie inverter.
You will require a BYD Battery Control Unit & Base (BCU) per ‘Battery Box’ (stack of up to 5 modules).
The other part of the fantastic duo of high voltage batteries produced by BYD.
While the HVM runs lower voltages per module (still ‘high-voltage’), it has a little more capacity per module and can be configured to provide significantly more storage.
3 to 8 HVM battery modules can be connected in series in one ‘Battery-Box’ (stack), providing 8.3 to 22.1 kWh of capacity.
As with the HVS, the ability to increase your storage capacity later by adding HVM modules or HVM Battery-Boxes is always there.
Along with the HVS, the HVM model is one of the only batteries that integrates with the Fronius Gen24 range of inverters in hybrid (do-it-all) mode.
You will require a BYD Battery Control Unit & Base (BCU) per ‘Battery Box’ (stack of up to 8 modules).
Our go-to battery, can be deployed in grid-tie battery back-up or off-grid systems.
It combines seamlessly with a wide range of inverters, and works with single or three phase inverters
Thanks to BYD and Victron’s close collaboration, the compatibility with Victron inverters is outstanding.
Its modular design allows effectively limitless flexibility for most applications, being scalable from 4 to 256 kWh.
You will require a BYD Battery Management Unit (BMU) to manage the whole system and one Power Distribution Unit (PDU) per ‘Battery Box’ (stack of up to 6 modules).
If you want to maximise storage capacity, the LVL is likely the battery for you.
Sharing most attributes with the LVS such as inverter compatibility, while coming in a larger 15.4 kWh format.
The LVL model provides you with battery storage solutions all the way up to 983kWh (64 units).
As with all models of BYD batteries, you have the ability to add in more units at a later date.
You will require a BYD Battery Management Unit (BMU) alongside your LVL batteries.
No, but a battery gives you far more control over your energy use. It lets you use stored solar power at night, during peak pricing or when the grid goes down.
Most lithium iron phosphate (LFP) batteries last 10–15 years, depending on usage and depth of discharge.
Yes. A properly configured battery will automatically supply backup power to essential circuits during a blackout.
In most cases yes. Many property owners start with solar panels and add a battery later when budgets or energy needs change.
This depends on your daily energy use, night-time demand and whether the site is grid-tied or off-grid. Larger homes, farms and commercial sites often need multiple battery modules.
Modern LFP batteries (such as BYD) are known for high thermal stability, long life and strong safety performance.
Yes. By using stored solar energy in the evening, you buy less electricity from the grid and avoid higher peak rates.
Yes. They store excess solar energy from the day to cover evening and night-time use, even with shorter winter sunlight hours.
Only for off-grid systems or sites with very high seasonal loads. Grid-tied homes and businesses usually do not need one.
Yes. Most modern batteries, including BYD, are modular and can be expanded as your energy use grows.
