Comparison

Battery Calculator vs IGSS Home

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Battery Calculator

Calculate estimated battery run time based on capacity and device consumption. Determine battery capacity from stored energy and voltage, and calculate required battery ratings based on load and duration.

Highlights
  • Battery life calculator
  • Battery capacity calculator
  • Battery size calculator
  • Estimate run time
  • Calculate battery capacity in Wh
  • Calculate required battery rating in Ah
Features
Read full description

Battery calculator include battery life calculator, battery capacity calculator and battery size calculator. battery life calculator uses battery capacity and device consumption to calculate estimated run time of battery life. battery size calculator calculates battery capacity, measured in amp hours based on energy stored in a battery, expressed in watt-hours and the voltage of the battery. battery size calculator calculates required the battery rating in ampere hour based on load, duration and discharge level. Formula: Battery Life Calc battery life = BC/DC * (BE/100) where: BC - capacity of your battery, measured in ampere hours [Ah] or miliampere hours [mAh]. This value is printed on your battery. DC - average current draw from electronic device, expressed in amperes [A] or miliampere [mA]. BE - The battery efficiency is the ratio of the energy retrieved from the battery, to the energy provided to the battery, when coming back to the same SOC state. Lithium-ion stays close to 90%. Lead acid batteries are lower at about 90%, and nickel-based batteries are closer to 80%. Battery Capacity Calc E = V * Q where: E - energy stored in a battery, expressed in watt-hours [Wh] or kilowatt-hours [kWh]. V - voltage of the battery. Q - battery capacity, measured in ampere hours [Ah] or miliampere hours [mAh]. Battery Size Calc Current calculation: If the load is specified in watt, the current is calculated as: I = P * V where: I - current in ampere. P - power in watts. V - voltage in volts. Lithium-ion batteries size = (100*I*t) / (100–Q) Lead-acid battery size = (100*I*t) / ((100−Q) * (0.02*t+0.6)) where: I - current in ampere. t - duration in hours. Q - required remaining charge in percentage. A battery rated for 100 Amp hours will provide 5 Amps for 20 Hours. If it is a 12 volt battery, multiply 100 by 12 and the battery will provide 1200 Watt Hours. divide the result by 1000 and the battery can supply 1.2 kW hours for the metric 'kilo' prefix. A kilowatt hour is a measure of energy used by an appliance if it were kept running for one hour. To keep in mind. Since the Amp Hour rating is a 20 Hour rating, so we need to treat kilowatt conversion as 20 hour rating. For the 1200 Watt Hour conversion, the battery will provide 60 Watts for 20 Hours. Ampere is an electrical unit used to measure the current flow towards the load. The battery life or capacity can be calculated from the input current rating of the battery and the load current of the circuit. Battery life will be high when the load current is less. You can determine the time that how long the battery charge will last. For example, a circuit connected with 1000 mAh current rating and it is connected to the load of 20 mAh. Then the battery will last for 50 hours. Batteries are available in different current rating due to its high requirement of different industrial and domestic purposes. Any battery life can be easily calculated by the values of battery capacity in mAh/Ah and load current in mA/A. Thanks for your support and do visit nitrio.com for more apps for your iOS devices.

About

IGSS Home

Features
Read full description

IGSS-3.0 is a brand new generation of Intelligent Energy Management Application, which is specially designed for global users. With the basic features of full-on visual experience, excellent data display and all-round monitoring, it achieves the goal of convenient operation. 【Build a Plant within 1 min】 No need to fill in tedious information. IGSS- Big Data will help to enrich more contents.  【24-hour Remote Monitoring】 Go to IGSS--3.0 APP to check running status of PV power plant at anytime and anywhere. Reveal all data (Production, Consumption, Battery, Grid, Real-time, Historical Data and etc,.) at a glance. 【Efficient Coordination】 Add authorization function. Users can authorize the plant you created to your business partner to do O&M cooperatively. Meanwhile, users can receive the plant from your business partner, which means users do not have to create a plant or configure the devices. 【More Functions】 Based on energy management field, IGSS--3.0 APP will keep the constantly innovation and bring better experience for every user. Dear Users, if you have any suggestions or comments, please feel free to send us a note and let us know how we are doing.

Screenshots

Battery Calculator4 screens
IGSS Home4 screens

Verdict

The call

The clearest difference is price: IGSS Home at Free against Battery Calculator's $2.99. IGSS Home also leads on update cadence (every 6 weeks vs every 40 months) and iOS requirement (8.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

IGSS Home is free to download; Battery Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Battery Calculator ships an update every 40 months, IGSS Home every 6 weeks. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 5 level
Battery Calculator versus IGSS Home: the parameters behind the verdict, then further details
ParameterBattery CalculatorIGSS Home
Price$2.99Free — better
Positive reviews0.0% of reviews—
Update frequencyEvery 40 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.08.0 — better
Further details — not scored
Size1 MB61 MB
Age rating4+4+
DeveloperNitrioIGEN Tech Co., Ltd.

In-app purchases

None

Battery Calculator

No in-app purchases

None

IGSS Home

No in-app purchases

Questions

Is Battery Calculator free?
Battery Calculator costs $2.99, with no in-app purchases.
Is IGSS Home free?
IGSS Home is free to download, with no in-app purchases.
Do Battery Calculator or IGSS Home have ads?
Neither Battery Calculator nor IGSS Home shows ads.
Which is updated more often, Battery Calculator or IGSS Home?
Battery Calculator ships an update every 40 months, and IGSS Home every 6 weeks. Most recently, Battery Calculator was updated on November 6, 2026 and IGSS Home on October 25, 2026.

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