Solar Batteries - Guide 2021

Discover solar battery prices and system specifications with our regularly updated solar batteries comparison table. See which energy storage system may be best for your home or business.

Product Name

• Manufacturer Logo
• Product Image
• In Depth Analysis
• Australian Approvals
• Battery Type
• All In One Unit?
• Price excl. installation (Estimated Retail pricing in AUD incl. GST, unless stated otherwise)
• Nominal Storage
• Usable Storage Capacity
• Pros
• Cons
• Weight
• Power
• Dimensions (WHD)
• Round Trip Efficiency
• Off-grid Capable?
• Designed for indoor or outdoor installation? (IP rating)
• Operating temperature range
• Warranty
• Compatible with what hybrid inverter brands? (Non-All In One units only)
• AC or DC coupled? (All In One systems only)
• Total warranted kWh (1 cycle per day)
• Datasheet Supplied?
• Warranty Supplied?
• Cost per Total Warranted kWh (1 cycle per day)
• More information on brand

Product Name	ABB (Fimer) REACT 2 (4 kWh)	Alpha-ESS Storion SMILE 5 – 5.5kWh	Aoboet UHOME NCA	BYD B Box Pro 13.8	Delta BX 6.0	Dyness Powerbox	Enphase AC Battery	Eguana Evolve	GenZ 48V 3kWh	Growatt GBLI6531	Hansol AIO 10.8	Huawei Luna (5 kWh)	LG Chem RESU 6.5	Opal Storage	PowerPlus Energy LiFe Premium Series	Pylontech US2000B	QCells Q.HOME	Redback SH5000 + BE13200	RedEarth Sunrise 6.5kWh	Redflow Zcell	Senec.HOME V3 Hybrid	SimpliPhi PHI3.4 Smart-Tech battery	SolarWatt MyReserve Matrix	SolaX Triple Power 4.5	Soltaro AIO2 5kW / 5kWh	Sonnenbatterie Eco 9.43	SunGrow SBP4K8	Tesla Powerwall 2	Trinabess Powercube	VARTA Pulse 6	Zenaji Aeon
Manufacturer Logo
Product Image
In Depth Analysis	Not yet	Yes, review here.	Not yet.	Not yet.	Not yet.	Yes, review here	Yes, review here	Not yet.	Not yet.	Not yet.	Yes, review here	Not yet	Yes, review here.	Not yet.	Not yet.	Not yet.	Not yet.	Not yet.	Not yet.	Yes, On-grid and Off-grid.	Not yet.	Yes, review here.	Not yet.	Not yet	Not yet	Yes, review here.	Not yet.	Yes, review here.	Not yet.	Not yet	Yes, review here.
Australian Approvals											N/A	N/A		N/A	N/A					N/A		N/A	N/A						N/A		N/A
Battery Type	Lithium-ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion (Nickel Cobalt Aluminium)	Lithium-ion (Lithium Iron Phosphate)	Lithium-Ion	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion (Lithium Iron Phosphate)	Lithium Ion (NMC)	Lithium-ion (Lithium Iron Phosphate)	Lithium ion LiFePO4	Lithium Ion	Lithium ion (Lithium ion phosphate)	Lithium-Ion (NMC)	Lithium Ion	Lithium-Ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion (Lithium Iron Phosphate)	Lithium Ion (Lithium Iron Phosphate)	Lithium Ion (NMC – LG battery modules)	Flow (Zinc-Bromide)	Lithium Ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion	Lithium Ion (NMC)	Lithium Ion (Lithium Iron Phosphate)	Lithium-ion (Lithium Iron Phosphate)	Lithium Ion (NMC)	Lithium Ion (NMC)	Lithium Ion (Lithium Iron Phosphate)	Lithium-Ion (lithium-mananese-cobalt-oxide)	Lithium Ion (Lithium Titanate)
All In One Unit?	Yes	Yes	No	No	No	No	Yes (includes microinverter – requires 1 Envoy-S comms unit per install)	Yes	No	No	Yes	No	No	Yes	No	No	Yes	Yes	Yes	No	Yes	No	Kind of – requires batttery converter called Command	No	Yes	Kind of. Includes AC battery inverter but requires solar inverter.	No	Kind of. Includes AC battery inverter but requires solar inverter.	Kind of. Includes AC battery inverter ("Powerbox") but requires solar inverter.	Yes	No
Price excl. installation (Estimated Retail pricing in AUD incl. GST, unless stated otherwise)	$8341	$9,042	$7,000	$9,600	$7,000	$10,000	$2,000 (fully installed)	$14,500	$3,300	$4500	$13,540	$6,000	$5,300	$12,000	$3,550	$1,999	$16,000	$18,000	$9,625	$12,600	$14,000	$4,700	$2,000 per module + battery converter	$2,800	$6,990	$16,500	$3,500	$13,300 (includes "Telsa Gateway")	$9,790 (includes $550 charge for extended Powerbox battery inverter warranty)	$7,000 – $7,200	$3,000
Nominal Storage	4 kWh	5.7 kWh	6.8kWh	13.8 kWh	6kWh	9.6kWh	1.2kWh	13kWh	3kWh (per module)	6.5 kWh	10.8 kWh	5 kWh	6.5 kWh	13 kWh	3.3 kWh	2.4kWh	12kWh	13.2kWh	6.5kWh	10 kWh	10 kWh	3.4kWh	2.4kWh	4.5kWh	5kWh	15kWh	4.8 kWh	14 kWh	9.6kWh	6.5 kWh	1.93kWh
Usable Storage Capacity	3.8 kWh	5.5 kWh	6.0kWh	13.8 kWh	5.6 kWh	9.6kWh	1.2kWh	12.2kWh	2.4kWh (per module)	6 kWh	9.72 kWh	5 kWh	5.9 kWh	11.7 kWh	2.64kWh	2.16kWh	10.8kWh	11.9kWh	5.2kWh	10 kWh	9 kWh	3.4kWh (or 2.75kWh if you are cycling at 80% DoD as per warranty document)	2.4kWh	4.05kWh	4.5kWh	13.5kWh	4.56 kWh	13.5 kWh	8.64kWh	6 kWh	1.93kWh
Pros	Modular (up to 12 kWh total)	Sleek modular design, IP65, UPS enabled	TBD	Units can be linked together in a parallel connection	Module made in Japan. Can be used in both off-grid and hybrid setups, modular expansion (up to 2 batteries per inverter). System, cell and cabinet have multiple safety features.	Can be used in both off-grid and hybrid setups, compact design, modular expansion	Simple installation, easy to add more batteries to increase storage capacity.	Modular, flexible, outdoor rated design for easy installation. Remote commissioning and troubleshooting with manufacturer support. Advanced auto-recovery controls avoid manual resets. Manufactured in South Australia. VPP-ready EMS	Modular and scalable. 10,000 cycles at 80% DoD.	Cheap.	All in one with Samsung batteries. Easy to install.	Modular - expandable	Can be used in both off-grid and hybrid setups, compact size, modular expansion.	Fast installation, Reposit ready, has backup capability if grid goes down, LG Chem battery technology inside, all DC and AC protection devices prewired	Self-managed and infinitely stackable. Rack mountable.	Safest Lithium Chemistry, Scalable, Integrated BMS, good cost-per-kWh	All in one solution from Qcells – solar inverter included	Inverter and BoS (Balance of System) – IP65 (outdoor rated); Battery Cabinet – IP54 (outdoor rated); Integrated back-up; Integrated DC isolator; Robust design; Expandable storage to size to customer needs; Australian design, Australian company; Monitoring platform and app included; All-in-one design ensures a clean install free from messy cables & conduit; Fast, safe and easy install	Made in Australia (battery cells from LG Chem), Expandable design, VPP ready, quick install.	Safe chemistry (low fire danger compared to lithium ion batteries), high depth-of-discharge, can tolerate temperatures up to 50 degrees C, easily recycleable, Australian owned & developed	All in one hybrid, provides “apocalypse proof” backup, can purchase 20 year extended warranty	American made, can be used in both off-grid and hybrid setups, compact size, modular expansion, 10 year warranty, very high cycle life, BMS integrated into each battery	German-made, 100% DOD, Modular, expandable up to 60 kWh, intelligent charging algorithm, easy to retrofit	Modular battery with scalability of capacity & charge/discharge power, higher charge & discharge power, Plug and play installation	DC & AC Coupled, Standalone, Wall Mountable, Expandable, Indoor or Outdoor, Low Noise	Made in Germany, long cycle life, great warranty	Simple setup for multiple batteries; One-click online firmware update; Robust BMS provides multi-protection at both cell level and system levell; Smart hibernation technology to maintain battery state of health;	Advanced safety features minimise fire risk, charges batteries from solar when grid is down, impressive warranty	Designed to be retrofitted to existing solar panel installations, scaleable	Ease of installation through "plug and play", German designed and manufactured.	20 year warranty, low battery degradation over time, designed to handle multiple cycles per day.
Cons	TBD	TBD	TBD	TBD	Designed to work only with Delta's E5 inverter	TBD	Very low power output per battery	TBD	TBD	Cheap.	The system, apart from the batteries, only has a 5 year warranty.	Only compatible with Huawei inverters1	Battery is warranted to 45ºC ambient	TBD	TBD	TBD	TBD	TBD	Backup power only 3kW	Heavy. Question mark over DC-DC roundtrip efficiency (~80%). Requires a maintenance cycle once a week or so that takes the battery offline for a few hours.	Expensive, low IP rating, lower power output compared to similar sized batteries	Relatively expensive	5 year product warranty	Only compatible with SolaX inverters	TBD	Relatively low power output – max 3.3kW	Only compatible with the Sungrow SH5K hybrid inverter	TBD	$550 extra charge to apply the full 10 year warranty to the Powerbox battery inverter	Does not provide backup.	apply the full 10 year warranty to the Powerbox battery inverter. Expensive compared to other lithium technologies
Weight	72 kg	123kg including inverter	62kg	181 kg	75kg	113kg	25kg	168kg	35kg	57.5 kg	239 kg	63.8 kg	52kg	240kg	41kg	27kg per battery	185kg	130 kg	130 kg	290kg	115 kg	38 kg (per individual battery module)	25kg	56.6kg	79kg	200kg	48kg	125kg	95kg	65kg	36kg
Power	2 kW	2.8kW nominal output	3kW	12.8kW	3kW steady	4.8kW	260W per battery (stacks with each additional battery)	5 kW steady, 6kW (30 minutes), 8.5kW (3 seconds).	3kW	4.2kW	6.6 kW steady	2.5 kW	4.2kW steady, 4.6kW peak (for 3 seconds)	4.6kW	3.3kW	2kW continuous per module (stacks with each additional module)	4.6kW	5kW	5kW	3kW steady, 5kW peak	3 kW charge, 3.5 kW discharge	1.5kW steady (48v version) 0.75kW stead (24v version)	800W peak (per MyReserve unit) under continuous operation	2.5kW	5kW	3.3kW	3kW	5kW steady, 7kW peak (10 seconds)	3kW steady	2.5 kW	2.4kW
Dimensions (WHD)	740 mm x 490 mm x 229 mm (inverter) 740 mm x 490 mm x 229 mm (battery unit)	120cm x 60cm x 25cm	52cm x 67cm x 23cm	65 cm x 80 cm x 55cm	552 x 596 x 200 mm	92cm x 55cm x 21cm	39cm x 32.5cm x 22cm	110cm x 78cm x 40cm	42cm x 88cm x 57cm	47.5cm x 76.5cm x 14.5cm	140 cm x 28 cm x 120 cm	670 x 150 x 600 mm	45cm x 65cm x 12cm	75cm x 155cm x 41cm	43cm x 88cm x 62cm	44cm x 9cm x 41cm	46cm x 72cm x 21cm	51.6cm x 203.8cm x 20cm	104 cm x 97 cm 54 cm	50cm x 115 cm x 100cm	117 cm x 53cm x 40cm	34 cm x 35 cm x 20 cm	38.4cm x 20.05cm x 27.7cm (per Myreserve unit)	46.4cm x 19.3cm x 58.8cm	75cm x 155cm x 41cm	67cm x 186cm x 23cm	51 cm x 56 cm x 19 cm	115 cm x 75 cm x 15cm	60cm x 100cm x 21cm	60cm x 69cm x 19cm	160cm x 15cm x 14cm
Round Trip Efficiency	TBD	92%	TBD	≥95.5%	96%	TBD	96%	>90% AC->AC	96%	TBD	90%	TBD	95%	95%	>96%	TBC	95%	90% Typical	TBD	80%	TBD	98%	92%	95%	95%	95%	95%	90%	94%	TBD	96%
Off-grid Capable?	TBD	Temporary off-grid available	TBD	Yes	Yes	Yes	No	Yes	Yes	TBD	Yes	TBD	Yes	Yes, Emergency Power Supply for backup up to 4kW	Yes	EPS capable with SolaX Power inverters	TBD	No	No	Yes	Yes	Yes	No	No	Yes	TBD	Yes	Yes	TBD	No	Yes
Designed for indoor or outdoor installation? (IP rating)	Indoor (IP 54)	Outdoor (IP65)	Indoor/Outdoor (IP65)	Indoor (IP 20)	Indoor/outdoor (IP 55)	Indoor/outdoor (IP 65)	Indoor (IP 20)	Indoor/outdoor (IP34)	Indoor (IP 50)	Indoor/Outdoor (IP 55)	Indoor (IP 54)	Indoor/outdoor (IP 66)	Indoor/Outdoor (IP 55)	Indoor/Outdoor (IP54)	Indoor (IP40)	Indoor (IP 20)	Indoor/Outdoor (IP65)	Inverter and BoS (Balance of System) – IP65; Battery Cabinet – IP54	Indoor/Outdoor IP43	Can be installed indoors, but outdoor installation is recommended (IP 43)	Indoor (IP 30)	Indoor (IP 32)	Indoor/Outdoor (IP54)	IP55 Outdoor	Indoor/Outdoor (IP65)	Indoor (IP 30)	Indoor/outdoor (IP 55)	Indoor/Outdoor (IP 67 for battery and electronics, IP56 for wiring)	Indoor/Outdoor (IP 54)	Indoor (IP33)	Indoor/Outdoor (IP 65)
Operating temperature range	-20 +55°C	0~40 (0.5C)	-10°C to 45°C	-10 °C to +50°C	-10 ~ 45 ℃	-20°C to 50°C	-20ºC to 45ºC	-10ºC to 45ºC	0°C to 55°C	-10°C~+45°C	-10°C – 45˚C	-10℃～ + 55℃	-10°C to 45°C	-10°C to 45°C	Charge 0°C to 55°C / Discharge -20°C to 60°C	0°C to 50°C	-10°C to 40°C	0°C-45°C	0°C-45°C	10°C to 50 °C	5°C to 40 °C	0° to 49°C	0°C to 45°C	-15°C to 55°C	-20°C to 55°C	-5°C to 45 °C	-10°C to 45°C	-20°C to 50°C	-10°C to 50°C	5°C to 45°C	-40°C to 60°C
Warranty	10 years	5 years product warranty, 10 years performance warranty	5+5 years	10 years	10 years	10 years	warranty, 10 years performance warranty 10 years	10 years	10 years	10 years	5 year full warranty, 10 year battery performance warranty	10 years	60% capacity at 10 years or 20,000 kWh throughput whichever comes first	5 year inverter warranty, 10 year battery performance warranty	10 years	7 years product warranty	10 years	5 years	10 years	Warranted total energy throughput 36.5MWh or a maximum of 10 years, whichever comes first.	10 years, can pay to extend to 20	10 years	5 year product warranty, 10 year battery performance warranty	10 years	5 + 5 years	10 years or 10,000 cycles, whichever comes first	10 years	10 years	10 years	7 years (inverter), 10 years (battery)	20 years
Compatible with what hybrid inverter brands? (Non-All In One units only)	N/A	N/A	TBD	SMA, Goodwe, Victron, Sungrow, Selectronic, Solis	Delta inverters only	Goodwe, Victron, Imeon, Solis, Growatt	N/A	N/A	Any inverter brand that handles lead acid battery with the the right charging parameter to suit the self managed lithium module.	TBD	N/A	Huawei	SolaX, SunGrow, Redback, Goodwe, Ingeteam, Selectronic, SMA	N/A	Any brand that can handle charging self managed lithium ion batteries (Selectronic, Victron, SMA SI, Outback, Schneider, Studer, etc)	SolaX, Goodwe, Imeon, Selectronic, Redback, Sungrow	N/A	N/A	N/A	Victron, Goodwe, Selectronic, Redback, Telco	N/A	Any inverter than can handle 48 volt lithium batteries.  (Less powerful 24 volt version also available.)	Most grid connect inverters	SolaX only	NA	N/A	Sungrow	TBD	Trina's PowerCube battery inverter only	N/A	Victron, Goodwe, Sungrow, Schneider
AC or DC coupled? (All In One systems only)	Can be AC or DC coupled	AC/DC/Hybrid coupling available	N/A	N/A	N/A	N/A	AC coupled	AC coupled	N/A	N/A	DC coupled	N/A	N/A	DC Coupled, can turn to AC Coupled using Reposit	N/A	N/A	TBD	DC coupled and AC coupled	DC coupled	N/A	DC coupled and AC coupled	N/A	DC coupled	N/A	DC coupled and AC coupled	AC coupled or DC Coupled with 3-phase hybrid variant	N/A	AC coupled	AC coupled	AC coupled	N/A
Total warranted kWh (1 cycle per day)	13,870	10,037	10,950	43,400	12,600	35,040	4,161	38,400	8,212.5	21,900	34,300	16,450	16,100	40,000	9636	4,500	39,420	Depending on battery type and manufacturer	18,980	36,500	32,850	11,177	4,380	14,782	8,212	49,275	TBD	37,800 (assuming most people will want to use 'other applications' such as off peak charging and Reposit)	22,450	14,946	14,089
Datasheet Supplied?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Warranty Supplied?	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes		Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Cost per Total Warranted kWh (1 cycle per day)	$0.60	$0.90	$0.64	$0.22 (+ inverter cost)	$0.55 (+ inverter cost)	$0.29	$0.48	$0.37	$0.42 (+ inverter cost)	$0.21	$0.74	$0.35	$0.30 (+ inverter cost)	$0.30	$0.37 (+ inverter cost)	$0.44 (+ inverter cost)	$0.41	TBD	$0.51	$0.35 (+ inverter cost)	$0.43	$0.42 (+ inverter cost)	$0.46 (+ battery converter cost)	$0.19 (+ inverter cost)	$0.85	$0.34	TBD	$0.31 (+ inverter cost)	$0.31 (+ inverter cost)	$0.48	$0.21 (+ inverter cost)
More information on brand	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here	Here

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Cost per warranted kWh 1 cycle per day

If the battery is cycled once per day, this is how much each warranted kilowatt-hour of stored electricity will cost. Once an individual product’s price per kilowatt-hour drops below 10 cents, battery storage is likely to be a worthwhile investment for a large number of households. This graph scrolls left to right – try it to see the really expensive units…

We update this comparison table frequently as more business and home energy storage systems become available, and specs and prices of existing solar batteries change.

Please note system pricing is our best estimate of retail prices inclusive of GST, unless specifically noted otherwise. But it is only an estimated cost.

Please read the following if you are not 100% certain what a kWh is, or the difference between a kW (kilowatt) and a kWh (kilowatt-hour): What does kWh stand for?. It’s important to be clear on this.

Usable Storage Capacity (kWh)

The energy stored in a solar battery system that can actually be used. In most cases this is less than the nominal storage capacity figure provided.

For example, the Enphase AC battery has a total storage capacity of 1.2kWh. But as only 95% of that stored energy can be discharged (aka a 95% Depth Of Discharge) the battery’s usable storage capacity is really 1.1kWh.

Battery Power (kW)

A solar battery’s power is how fast it can be charged or discharged.

For example, an Enphase AC battery is a low power solar battery storage system (also known as an ‘energy’ battery) because it takes 4 hours and 23 minutes to discharge all its usable energy, while the BMZ ESS is a high power battery because it can discharge all its usable energy in under 40 minutes.

A high power home battery system isn’t necessarily more desirable than a low power battery – your household’s unique energy usage needs will determine how much power you will require from a solar battery and the best energy storage solution for you.

All In One Unit

This means the system includes batteries, a battery management system (BMS) and an inverter. The Sunverge SIS is one example of an all-in-one home energy storage system.

If a battery management system and/or inverter have to be purchased separately, this will add to the total cost of the system.

Warranty Document Supplied?

Links to a warranty document if it is available. Don’t buy a solar battery system until you have read the latest version of its warranty document sourced direct from the supplier. They change often and we can’t guarantee the linked version we provide above is the latest.

Total Warranted kWh (1 Cycle Per Day)

If you only discharge the battery once per day (most likely for larger solar batteries in residential situations), then the warranty period may expire well before the warranted kWh are all used up.

The number of kilowatt-hours (kWh) a home battery system can discharge per day is multiplied by the number of days in the warranty period in order to generate the figures for this row.

Cost Per Warranted kWh (1 Cycle Per Day)

This is the solar battery price (excluding installation) divided by ‘Warranted kWh (1 cycle per day)’. If you discharge the battery approximately once per day, this number indicates what energy storage system may be the most cost-effective in your circumstances.

A Note On Battery Warranties

Some solar batteries in the table have different warranties for components within the unit. For example, some “all in one” battery storage systems warrant the batteries for 10 years but the internal inverter only has a warranty of 5 years.

We use the ‘weakest link’ warranted figure (so in the above example, 5 years instead of 10 years) when calculating the cost per warranted kWh.

Disclaimer: Although we strive to review the information in this comparison table regularly to keep it up to date and accurate, mistakes may be made and prices and other figures/specifications can go out of date quickly. Check with battery manufacturers before making any solar storage purchase decisions based on information provided in this table.

NEW! – Try our solar battery calculator – see what your electricity bills could be and whether batteries are the right choice for your home.

NEW! – Find out more about the manufacturers listed in the table above and what Australians think about their batteries in our solar battery storage reviews pages – more than 40 companies listed!