Tesla Electrical Service's

26/02/2026

27/12/2025

10/08/2023

A solar charge controller is a device that regulates the voltage and current from the solar panels to the battery and load.
It is essential to choose the right size of solar charge controller for your solar system, as it can affect the performance and lifespan of your battery and solar panels.

There are two main types of solar charge controllers: PWM (pulse width modulation) and MPPT (maximum power point tracking).

PWM controllers are simpler and cheaper, but they are less efficient and can only handle the same voltage as the battery. MPPT controllers are more advanced and expensive, but they can handle different voltages and convert excess voltage into more current, thus increasing the efficiency and output of the solar system.

To calculate the right size of solar charge controller, you need to know the following information:- The rated power (in watts) and voltage (in volts) of your solar panel array- The nominal voltage (in volts) of your battery bank- The safety factor (usually 1.25 or 1.3) to account for losses and variationsThe basic formula to calculate the minimum current rating of the solar charge controller is:**Current rating = (Solar panel power x Safety factor) / Battery voltage**For example, if you have a solar panel array with a rated power of 300 watts and a voltage of 24 volts, and a battery bank with a nominal voltage of 12 volts, you can use the following steps to calculate the right size of solar charge controller:-
Step 1: Multiply the solar panel power by the safety factor: 300 x 1.25 = 375 watts-

Step 2: Divide the result by the battery voltage: 375 / 12 = 31.25 amps-

Step 3: Round up the result to the next whole number: 32 ampsTherefore, you need a solar charge controller with a minimum current rating of 32 amps.

You can choose either a PWM or an MPPT controller, depending on your budget and preference. However, if you choose a PWM controller, you need to make sure that the solar panel voltage matches the battery voltage, otherwise you will lose some power.

If you choose an MPPT controller, you can use any solar panel voltage that is higher than the battery voltage, as the controller will adjust it accordingly.

08/07/2023

27/12/2022

13/09/2019

Most Useful Measurement Units In formation.

1cm = 10mm
1metre = 100cm
1Km = 1000mitres
1kg = 1000grams
1gram= 1000milligram(mg)
1Quintal = 100Kg
1Metric ton = 1000Kg
1Pound = 454gm
1litre = 1000ml
1kilo litre=1000litres
1Gallon = 3.79litres
1Barrel oil= 163.65litres
1cusec = 1 cubic feet of water flows through a point in one second( this measure used only for flowing water)
1TMC = 100 crore cubic feet water(this measure used only for reserved water)
1 inch = 2.54cm
1 feet =12 inch= 30.48cm
1Yard= 3feet
1mile = 1.609 km
1Natical mile=1.852km
1 cent= 435.6 sq feet
1acre = 100 cents
1Hectare = 2.471 acres
1kilo byte(KB)=1024bytes
1Megabyte(MB)=1024KB
1Gigabyte(GB)=1024MB
1Terabyte(TB)=1024GB
1Million=10 Lakhs
1Billion=1000 Million= 100 crore
1 Trillion= 1000 Billion=1Lakh crore
1 Karat = 4.16 '/. gold
24 karat gold=99.5 '/. gold(pure gold)
22 karat gold= 91.6 '/. gold + 8.4 '/. other metal Normally this 22 Karat gold is called as 916, KDM, HALL MARK
18 Karat gold=75 '/. gold+25 '/. other metal
12 karat gold = 50 '/. gold+ 50 '/. other metal
1 Ream = 500 papers
1gross = 12 dozens = 144 articles

Record:
1 Gunta = 121 Sq yards.
1 Gunta = 101.171 Sq Meter.
1 Gaj = 1 Yard
1 Yard = 36 inch
1 Yard = 3 feet
1 Yard = 0.9144 meter =
1 mtr.
1 sq Yard = 0.83612 Sq meter.
1 sq Yard = 9 sq feet.
1 Sq yard = 1296 Sq inch.
1 Meter = 1.0936 Yards.
1 Meter = 39.370 inch.
1 Meter = 3.280 feet.
1 Sq meter = 1.1959 Sq yard.
1 Sq meter = 1550 Sq inch.
1 Sq Meter = 10.763 Sq feet.
1 feet = 0.304 meter.
1 feet = 0.333 yards.
1 feet =12 inch
1 Sq feet = 0.111 Sq Yd
1 Sq feet = 0.09290 Sq Meter.
1 Sq feet = 144 Sq inch.
1 inch = 2.54 vv
1 Inch = 0.0254 meter.
1 Inch = 0.0277 yards.
1 Inch = 0.0833 feet.
1 Sq Inch = 0.00064516 Sq Meter.
1 Sq Inch = 0.00077160 Sq Yards.
1 Sq Inch = 0.00694444 Sq feet.
1 Acre = 4046.86 Sq Meter.
1 Acre = 4840 Sq yards.
1 Acre = 43560 Sq feet.units