37 lines
1.1 KiB
Markdown
37 lines
1.1 KiB
Markdown
---
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category:
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- "[[Journal]]"
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type:
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- "[[Log]]"
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title: Home and van battery upgrades
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created: 2026-01-25T14:28:52
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date: 2026-01-25
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tags:
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- research
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---
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So my general plan for increasing the capacity of the house battery and also being able to use that in the van while camping.
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- House side
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- EcoFlow STREAM Microinverter
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- £99
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- MPPT range
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- 16-60v dc
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- Start-up voltage
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- 20v
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- Batteries
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- 12v, minimum of 2 to achieve MPPT start-up voltage
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- 12v 100 Ah = 1.3 kWh @ £160 = £125 / kWh (frogstar)
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- 12v 280 Ah = 3.6 kWh @ £360 = £100 / kWh (eco-worthy)
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- 12v 314 Ah = 4.2 kWh @ £450 = £107 / kWh (frogstar)
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- 12v 460 Ah = 5.9 kWh @ £600 = £101 / kWh (frogstar)
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- Charger
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- This maybe the limiting factor here, how much kW over cheap rate
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- 24v 40A = ~1.0 kW @ £135 (frogstar) = 5.0 kWh (in 5 hrs)
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- 48v 35A = ~1.9 kW @ £150 (frogstar) = 9.5 kWh (in 5 hrs)
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- Van side
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- renology mppt dc-dc charge controller 50A @ ~£200
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- charge the ecoflow off van service battery (will be slow, but constant)
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@ 2 x 280 Ah batteries (7.2 kWh capacity)
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£1,155 total
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