| What it does | Pro rata calculator for insurance premiums
| Free power station runtime calculator for portable battery systems
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Calculates earned and unearned premium by policy dates
- Shows daily rate and pro rata factors
- Displays full calculation formula with your numbers
- Handles leap years with actual calendar days
- Two cancellation-date rules: first day not covered or last covered day
- Provides total policy days, earned days, and unearned days
- Estimates straight-line pro rata return premium
- Calculations run locally in your browser
| - Runtime calculator for 52 power station models across 6 brands
- Device power consumption presets with 20+ common appliances
- Transparent assumptions with every specification linked to source
- Cautious, typical and optimistic runtime range estimates
- Output compatibility checking against power station ratings
- Solar recharge duration calculator
- Power station comparison tool
- Capacity calculator for determining required battery size
- Scenario planners for CPAP overnight and home outage situations
- Free embeddable widgets for blogs and review sites
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| What makes it different | - Transparent straight-line pro rata calculation without fees, penalties or taxes
- Accounts for leap years and actual calendar days automatically
- Shows the complete formula filled in with your own policy numbers
| - Every specification sourced directly from manufacturer pages and manuals, not retailer listings or forums
- All formulas and assumptions transparently shown with labeled defaults and sources
- Independent verification requiring specs confirmed from manuals rather than marketing copy
- Continuously updated specs checked between 180-day intervals with automated verification scripts
- No guesswork; empty fields stay empty when manufacturers do not publish data
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 1 | 5 |
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| Citation Flow (Majestic) | 17 | 17 |
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| Referring domains (Majestic) | 12 | 4 |
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ProRataWise
Kilohour