We’ve re-powered an existing three-phase hybrid generator, replacing old lead-acid batteries with 16 Pytes V5 lithium units.
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Pytes V5A 5.12kWh Battery - ESS Residential Solar LifePo4 LFP
5kVA/20kWh Victron & Pytes 220V/230V Single Phase System
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Let customers speak for us
Stephen Walters
All round great company
Very competitively priced, with helpful staff that knows their stuff. They went above and beyond to correct a mistake I made on my order. I will definitely be purchasing any future solar requirements from them. My only regret is not finding them sooner, I would have saved a fortune.
Anonymous
Victron GX touch 70 screen
Fast delivery, competitive pricing
Kelly Jamieson
Purchased for campervan conversion , finally all wired up and connected works perfect , great piece of kit and good price
John Kirby
Good quality kit
Works seamlessly with Solar panels & Pylontech RT12100 100Ah battery. Easy to monitor using the freely available Victron Connect App.
Would highly recommend the Charge Controller & Callidus who are always very helpful & informative.
Glen Hall
Battery charger
Fantastic piece of kit. Does what it says on the box. Victron equipment is very reliable, and great to connect to smart phone.
Wayne Hollingworth
Excellent quality
Excellent quality product and great customer support service always happy to help and provide support
Scotty
Another great victron product
As always it does what it says on the tin and has never let me down. Love victron stuff, easy setup and forget.
Tony Bray
Perfect
Have now brought 3 lots of solar from Callidus and every time have been perfect, fast deliveries and helpful communication, easy to install with no problems, can’t praise them enough,
William Gaffoor
The Absolute Cream
It’s my second victron charger, and most likely I won’t go any larger than this. It’s responsible for charging a 150 amp 51.2v
john spencer
Service
Absolutely the best service I high recomend anyone thinking about solar to use calidus 100% I can't recommend them highly enough.
MICHAEL VAUGHAN MITCHELL
Campervan solar
Excellent communication with speedy delivery quality product, asked for a change to black glands and Z brackets , done with no additional charge
Mark Vincent
Great service!
Great service from Alex & the team sorted my system out for me & delivered in a couple of days great turn around & well packaged 👍
Brian Clark
Great piece of kit
Great piece of kit, excellent value for money (purchased while on offer) great delivery even though we purchased between Christmas and New Year.
Being installed next week
Chris Edwards
Solar panel
What a solar panel quality product well made and the service I received was excellent highly recommend this company
Mike Collins
The staff and the team are so helpful I had an issue with my solar panel and Tom Howe and his team sorted it out within hours. So grateful to them all. Regards Mike Collins
Pytes ESS Batteries FAQ's
Are Pytes Lithium batteries compatible with most inverters?
Pytes lithium batteries are are designed to work with almost all hybrid inverters on the market. They work well with Victron Energy, Solis, Growatt and more. If you're concerned about whether a Pytes ESS lithium battery will work with your inverter please contact our team who can make sure your system is compatible.
Can Pytes work without the internet?
All Pytes ESS battery storage products are designed to work perfectly without the use of the internet. Most inverters on the market that will be used with Pytes batteries have interfaces that are better when used with an internet connection however this isn't usually something that is a must.
What is Pytes warranty?
Pytes offers some of the best warranties in the industry. Click below to view the Terms of Warranty for products:
V5° & V5°α Terms of Warranty (Shanghai).docx
E-Box Terms of Warranty (Shanghai).docx
What exactly is a full cycle? What about partial cycles?
Pytes defines a full cycles as discharge to programmed depth of discharge and back up again to 100% charge. Partial cycles are when the battery is not completely discharged down to it's DoD setting before it's fully recharged. In terms of the Pytes warranty this means cumulative cycles totaling the rated DoD settings (per the warranty) are the equivelant of a cycle.)
How can I monitor my system?
Your inverter of choice will usually have an interface that will allow you to the view the stats and functionality of your battery, home and solar.
Can my Pytes ESS battery charge from the grid?
It's possible to charge your battery from the grid. Some people use this feature to store energy from a cheaper usage period like nights or evenings and then use that electricity during the day where it would of been more expensive.
Pytes ESS News & Updates
Bespoke Victron & Pytes Off-Grid Power System for Robotic Lawn Mowers covering 150,000 square feet.
Comparing Pytes vs PylonTech rack-mounted batteries, this in-depth guide reveals which performs best for solar, off-grid, and hybrid systems in 2025. From capacity and cold-weather resilience to fire safety and Victron integration, find out why Pytes might just be the smarter choice.