# Calculator

• ## Step 1

Provide your solar panel/array total wattage.
• ## Step 2

Provide your battery total Amp Hour (Ah) rating.
• Calculate
• Clear fields

• ## CONVERSION CALCULATOR

Use this to find conversion rates for Volts, Amps, & Watts.

• Calculate for Current (I) I = P / E (Watts / Voltage = Amps)
• Calculate for Power (P) P = E * I (Voltage * Amps = Watts)
• Calculate for Voltage (E) E = P/I (Watts / Amps = Voltage)
• Calculate
• Clear fields

Calculator Notes:

• “NaN’ means “Not a Number” and results from an incorrect input.
• This calculator cannot account for all battery performance variables and is for estimating purposes only.
• If calculating for 120VAC, include the inverter “no load” rate (from the product spec) for a more accurate estimate.
• “Ah” means Amp Hours and is a rating used to indicate “size\capacity” of a battery.
• When figuring AC power duration remember the inverter wattage rating should match\exceed the wattage rating of the thing you’re powering.
• When verifying panel wattage use the panel spec sheet to find Vmp (voltage maximum power) & short circuit current (amps).
• Use the Vmp value taken at a nominal operating temp multiplied by the amps value…,
• This derives an non-adjusted panel wattage that doesn’t include loss (i.e. – cable & diode)