Current Estimation Pro
Compact mode stays free for everyone. Pro unlocks Full mode and the professional models for engineers who size batteries for a living. You get a licence key on the next page and by email; paste it into the calculator once and it stays active in that browser.
Monthly
€9/ month
Cancel any time
Yearly
€49/ year
Save 55% against monthly
Team
€149/ year
5 seats, one licence key per engineer
Prices in EUR. Subscriptions renew automatically and can be cancelled at any time; the key keeps working until the end of the paid period. Payments are processed by Stripe. Bought early access? You get a key with a free first year.
What Pro includes
- ✓Full modeRegulator efficiency and switch-off per state, input/source rails, resistive loads, peak currents and the per-state breakdown: the complete power model behind every estimate.
- ✓Accuracy PackBattery aging, temperature derating, self-discharge, usable depth of discharge and Peukert losses, so the estimate reflects real cells rather than the datasheet capacity.
- ✓Solar Pro PackPanel specs instead of a charge current, PWM/MPPT controller models, a derating cascade (temperature, soiling, cable, mismatch), 10 climate zones with worst/average/best month, an energy balance card and the panel size needed to break even.
- ✓Scenario lab and PDF reportClone a project, change it and compare battery life and average current side by side; export a PDF report for design reviews.
- ✓Confidence viewPlannedBest, typical and worst-case battery life shown together instead of a single number.
- ✓Datasheet extraction and Monte Carlo lifetimePlannedPre-filled currents from a part number, and a battery-life distribution from randomised tolerances.
Prefer a human check?
Have an engineer review your power design in the Hardware Clinic pre-fab check (€690).
See the Hardware Clinic →Using the free Compact mode? Go back to the tool