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Knowledge
Answers before you choose a battery
Short answers to the questions our customers ask – with sources for every claim and calculators you can check yourself.
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Ready to buyChecklist
Switching from AGM to lithium: What do you need?
Often more than the battery. Check three things: that your charger has a LiFePO4 program, that you charge from the vehicle through a DC-DC charger, and that the batter...
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ResearchingCalculator
How many Ah do I need?
Add up your daily consumption in watt hours, divide by 12.8 V, and multiply by the number of days you need to manage without charging. For lithium, add 25% on top. For...
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ComparingCalculator
Is lithium worth it over AGM?
Yes, if you use the battery often. In Victron's own datasheets, their lithium battery lasts 2,500 cycles at 80% depth of discharge – their AGM 400. If you rarely use t...
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Tools
Do the maths yourself
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Service life and price
See how many years lithium needs to last to become cheaper than AGM – with figures from data sheets.
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Battery size
Convert your daily consumption into Ah and see which batteries fit.
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Checklist for the switch
Charger, DC-DC charger, fuse and frost: see what you need – and the total price.
Open the checklist