Guides
Battery storage guides: buying advice & know-how
Buying criteria, technology and legal matters around battery storage systems – explained factually, with matching models and current prices from our comparison.
All guides
- Guide · 7 min readIs a Battery Worth It for Balcony Solar? Calculation & CriteriaA battery makes your balcony solar kit usable in the evening – but often costs more than the kit itself. This calculation helps you work out whether it pays off for you.Updated 23/09/2026
- Guide · 7 min readBuying a Power Station: Wh, Watts, LiFePO4 & UPS ExplainedPower station data sheets are full of numbers. Here you will learn which ones really count and how to find the right size for your needs.Updated 23/09/2026
- Guide · 7 min readBackup Power with a Power Station: What It Can – and Cannot – DoDuring a power cut, a power station keeps important devices running – quietly and without exhaust fumes. Here you will learn how to plan properly and where the limits lie.Updated 23/09/2026
Popular comparisons
- Balcony solar batteries33 models · from €199A battery saves midday solar power for the evening. Here you will find retrofit batteries and all-in-one systems for plug-in solar kits.
- Power stations252 models · from €25A power station is a battery with sockets: for camping, the garden, building sites or as a reserve during power cuts. Here you can see all models with current prices.
- Power station + solar panel27 models · from €129In a kit, the power station and solar panel are matched to each other. That way you can recharge with solar energy on the go or during a power cut.
- Camping power stations92 models · from €25Up to 600 Wh, power stations are still light enough to carry – ideal for the tent, van, fishing trips or the allotment.
- Power station 1–2 kWh55 models · from €239The 1 kWh class is the most popular compromise between capacity, weight and price – big enough for a fridge and coffee machine, yet still portable.
- Power station 2 kWh+52 models · from €59From 2 kWh, a power station becomes a serious backup reserve: enough for a fridge, heating pump and router for a whole day.