BYD solar batteries reviews

Based on 85 ratings Aus Ranking

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About BYD, Solar Batteries

BYD solar batteries review

BYD stands for Build Your Dreams - and among BYD's many dreams is being the no.1 company for solar battery storage.

Headquartered in China, BYD has an impressive pedigree. Founded back in 1995 and listed on the Hong Kong Stock Exchange in 2002, it started out as a battery manufacturer and entered the automobile sector in 2003. That's the opposite of Tesla, which started out on electric vehicles and then moved into solar battery storage.

The company has built many of the million plus electric buses running around China (and many used elsewhere) - so it's had plenty of practice in developing EV and battery technology that gets a good workout. While many Australians may not have heard of the company, it's also one of the world's largest lithium-ion battery manufacturers.

BYD Battery Box In Australia

In 2017, BYD brought the "B-Box" to Australia's battery battleground. These days it's known as the Battery Box. 

The BYD-produced battery modules are based on lithium-iron phosphate chemistry, which is currently the safest technology to use in a home energy storage system. BYD Battery-Box offers both high voltage (HV) and low voltage (LV) battery models.

Compatible with inverter brands including Fronius, SMA, Goodwe, Victron, Sungrow, Selectronic and Solis hybrid inverters, these are modular systems available in varying capacities. For example, the BYD Battery-Box Premium HVM 13.8 offers 13.8 kWh of usable storage capacity, which is a tad more than the Tesla Powerwall's 13.5kWh . 

What is also more than the Powerwall is its weight - significantly so (205 kg for that config vs 125 kg), but home batteries aren't the type of thing you have to move around once in place.

If 13.8 kWh of usable capacity isn't enough for you, a HVM stack can be as much as 22.1kWh. Additionally,  direct parallel connection of up to 3 identical Battery-Box Premium HVM towers allows a maximum capacity of 66.2 kWh.

If using the BYD Battery-Box Premium LVS, 1 to 6 battery modules can be stacked in parallel offering up to 23.0 kWh usable capacity in one tower. Connecting up to 16 Battery-Box LVS 15.4 in parallel can be achieved, for a maximum capacity of 245.8 kWh.

But if you need that much storage for a household, then the police will probably also take an interest in what you're doing with it.

One of the standout features of the BYD B Box battery system is its power output - up to a very impressive 9.9kW depending on the model and configuration chosen. A compatible inverter enables DC coupling to solar and backup power during blackouts, and it can also be AC coupled.

Additional specifications of some BYD Battery Box models can be located on our solar battery comparison table.

BYD Battery Warranty

BYD warrants the B Box will retain either sixty percent of its usable capacity at ten years from the invoice date, or whenever it reaches its Minimum Throughput Energy, which varies between models/configurations - whatever comes first.

The company has an official service partner in Australia, so any warranty issues should hopefully be sorted out rapidly.

The SolarQuotes View

New generation home batteries still need some time in the field to get a better idea on how they will perform over the long term. But based on feedback from our installer clients, BYD is currently listed on our chart of solar battery brands we'd be happy to install on our own homes.

In SQ's Installers' Choice Awards 2023 for home batteries, BYD scored silver in both best battery and best value home battery brand categories, and bronze for best support.

If you have a BYD battery system, share your thoughts on it with other Australians by leaving a rating and review.

BYD Solar Battery Reviews

Bought From: Solar Wholesalers SA Show additional information
Bought From: Solar My Home WA Batteries Show additional information
Bought From: GI Energy Brisbane Show additional information
Bought From: Goulburn Solar Show additional information
Very solid build, capable to power entire house during night time and in case of blackouts.
Even can run 14kW air con for some time without drawing power from the grid.
Bought From: Exceed Solar Adelaide
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We had 5 battery units installed and this runs the house from sunset through to sun rise and drops down to 30% and is fully charged before 12 noon. Interesting to see the performance during winter.
Bought From: Solar Wholesalers SA
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Bought From: Solar Tactics Show additional information
Bought From: Solar Wholesalers Show additional information
The battery is a slim line modular solution barely noticeable in the garage with
ample expansion capacity.
Bought From: Exceed Solar Adelaide
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Bought From: Exceed Solar Adelaide Show additional information
Bought From: MC Electrical Show additional information
Bought From: G Solar and Electrical Pty Ltd Show additional information
Too early for longevity assessments, but I'm very happy with the design. Great Functionality and Smart Looks with Flexibility. We deliberately oversized the battery -11kWHrs. But seeing as our usual consumption is about 7kWhrs per day, we only want to use about half the capacity for a longer life.
Bought From: Solargain Perth
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Bought From: SAE Group Sth Sunny Coast Show additional information
Bought From: Solar Wholesalers Show additional information
Bought From: Apex Solar and Electrical Show additional information
Bought From: EISS Pty Ltd Show additional information
Bought From: West State Electrics Show additional information
These batteries are only IP55 rated, which we were aware of before requesting them installed outside. Not shown in the photos is the enclosure built over the battery and inverter to protect if from sun and rain
Bought From: Sinclair Renewable Energy Pty Ltd
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Really happy I went with a modular system in case we decide we need to expand on it in the future. Surprisingly, due to having two systems feeding into it, we are getting up to full charge during the winter, typically getting down to roughly 50-60% overnight (though there has been once or twice where we've had to run the dryer where it has gone lower). With 13.5kW of solar, most days we are back up to full charge by 11.30ish
Bought From: Solar Wholesalers
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Had some issues with the batteries not long after the instal, they reset them remotely and haven't had any issues since.
Bought From: Expert Electrical Beaudesert to Warwick
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It's a good sized system - 22.8kWh BYD that is full by midday. It powers our house no worries overnight, with around 30% left in the morning. We've had the air con on a couple of times but not for that long. We have a few things to adjust on the air conditioning because we have no thermostat system properly set up on it yet, but once we do, I've no doubt the battery will handle it completely.

The battery is full by midday, so when I get my new car, I'll plug it in and recharge it - it's bloody wonderful.
Bought From: Sinclair Renewable Energy Pty Ltd
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So far so good..
Bought From: Solar Wholesalers
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Bought From: Solargain Hervey Bay - Bundaberg - Gympie Show additional information
Bought From: Oslec Energy Solar solutions Show additional information
Bought From: Solargain Echuca Show additional information
Bought From: Replenishable Energy Pty Ltd Show additional information
Bought From: Evergreen Electrical Services Show additional information
Great so far but can't comment on durability or performance degradation reliably. 22kWh tops up the average 7-10kWh daily that we take from our 50kWh car battery and runs the house overnight. It does struggle to do all that in cloudy weather so we let the car drop into the red on these occasions. This is where the grid still feels worth having.
Bought From: GI Energy Brisbane
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Love the 16.6kW stacking system which allows for additional modules in the future.
Bought From: SunSmart Sunshine Coast
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I still have 70% battery at 10pm so very happy.
Bought From: Thompson Electrical and Solar
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Bought From: Replenishable Energy Pty Ltd Show additional information
Bought From: SOLAXS Pty Ltd Show additional information
Poor storage of available energy
Bought From: SunSmart Sunshine Coast
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Bought From: Illuma Electrical Group Pty Ltd Show additional information
Compact, neat, tidy.
Bought From: Solarbank
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Bought From: Airlec Adelaide Show additional information
We are able to add to this in the future should we wish to increase our power storage capacity.
Bought From: GI Energy Brisbane
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Bought From: Expert Electrical Nth Brisbane to Kingaroy Show additional information
So far so good.
Bought From: RK Solar And Consulting NSW
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BYD HVM 11 kWH Battery

Charges everyday by mid day and discharges after the sun goes down.
On days where we don't use the air conditioner it lasts until the next morning

Our A/C is ducted Actron ESP that is the largest single phase model they make.
It draws 5kW peak and modulates the compressor to run effeiciently.

On very hot days when we run it, the battery carries us through the peak energy period and runs out around 9-10pm

We also have a Fronius Ohmpilot solar diverter to heat the hot water using excess solar
It is excellent also heating our 250 l storage hot water tank.

Too early to tell reliability but so far so good.
Bought From: DJM Electrical Pty Ltd
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Bought From: Replenishable Energy Pty Ltd Show additional information
Bought From: SEM Darwin Show additional information
Bought From: Apex Solar and Electrical Off Grid Show additional information
The BYD HVS 5.1 Battery was recommended by Expert Electrical is performing to expectations as part of the "Hybrid" system chosen. Modular construction means we can add extra "packs/blocks" if we choose to.
Bought From: Expert Electrical Beaudesert to Warwick
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Bought From: Sunwise Energy PV Show additional information
Bought From: Eco Sparks Solar and Electrical Contractors Pty Ltd Show additional information
Bought From: Ahlec Pty Ltd Show additional information
Bought From: Beyond Solar NSW Show additional information
Bought From: SunPeople Andrew Show additional information
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