Battery Life Calculator
Runtime, capacity & power for any battery project
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A free battery calculator with three modes: find runtime, required capacity or maximum power draw. Choose Li-ion, LiPo, NiMH, lead acid, alkaline or custom cells and work in mAh, Ah, Wh, mA, A or W. Add multiple devices from a built-in library of Arduino boards, sensors, LEDs and motors. Advanced options cover temperature, aging, efficiency, series/parallel cells, C-rate and safety margin. Save configs, no signup.
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PH · launched Oct 15, 2026 · 2 upvotes (top 22%)
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- Productivity
- Hardware
- Developer Tools
Similar launches
See all 227 similar launches →Could you build this?
Yes A battery runtime, capacity, and power calculator with unit conversions and a device library is straightforward arithmetic plus a UI, though accuracy depends on careful domain formulas.
Competitors
Other products that read as similar to this one : 227 launches clear the similarity bar, closest 8 shown.
Attention rank: #19 of 228 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 146 days after the earliest competitor.
- WattWise · ph · 2026-10-29 · 1 upvotes · similarity 0.57
- 40Ah Solid-State Lithium Pouch Cell · ph · 2026-11-03 · 1 upvotes · similarity 0.50
- Home Energy Calculators · ph · 2026-10-11 · 1 upvotes · similarity 0.50
- ProjectSolar Solar Calculator · ph · 2026-10-22 · 1 upvotes · similarity 0.47
- BMS Monitor · ph · 2026-09-20 · 2 upvotes · similarity 0.46
- Pool Calculator · ph · 2026-10-25 · 4 upvotes · similarity 0.46
- DM Tool Studio · ph · 2026-10-02 · 2 upvotes · similarity 0.45
- Voltyn · ph · 2026-10-06 · 1 upvotes · similarity 0.45
Other launches for this product
- No other launches for this product.