In 2018, after extensive research, SolarTherm UK started installing Voltsmile batteries in properties across the South East. This blog will look at the reasons why we believe Voltsmile batteries are the way forward.

Voltsmile V10
The Voltsmile V10 modular battery is the perfect system to get you started on your solar journey, it’s advanced rechargable technology offers efficient and reliable storage. Starting at 5.12kW capacity, you can increase this to a total of 20.48kW one module at a time or when required. The Voltsmile V10 has top-range safety features including overcharge protection and temperature monitoring, guaranteeing safety in wherever you choose to have it installed.
Capacity | 5.12kW |
Modular | yes |
Charge current | 100 Amp |
Discharge current | 100 Amp |
Store temperature | -20°C ~ 55°C |
IP Rating | IP20 |
Design life | 10+ years |
Warranty | 10 years |

Voltsmile W1
Compact and space efficient the Voltsmile W1 is designed for customers with limited indoor space who are looking to boost their solar savings with battery storage. The wall mounted W1 offers the same safety features as the V10 but the IP67 rating allows it to be installed outside or inside the property.
Capacity | 10.24kW |
Modular | No |
Charge current | 100 Amp |
Discharge current | 100 Amp |
Store temperature | -20°C ~ 55°C |
IP Rating | IP67 |
Design life | 10+ years |
Warranty | 10 years |
Both batteries are leading contenders, offering a competitive alternative to market leaders for a cost-effective price. At SolarTherm UK we recommend Voltsmile batteries for your solar battery storage solutions, paired with a bespoke designed solar system, our Solar Experts are more than happy to guide you through the process of design and installation of your solar PV system.
Follow us at SolarTherm UK, where we do the research so you don’t have to.