Select Page

Parameters:

  • Load type (ampere or watt): Select the unit in which the load will be specified, ampere or watt.
  • Load (watt): If the load type is watt, specify the load in watt, for example 100 W. Use and average value if its a cyclical load.
  • Load (ampere): If the load type is ampere, specify the current in ampere, for example 10 A.
  • Voltage (V): Specify the battery voltage, if the load type is watt.
  • Required duration (hours): Specify the duration that the load must be supplied for.
  • Battery type:  Select the battery type,  lead-acid or lithium-ion.

  • Required battery size (Ah): The recommend battery size in Ah.

Current calculation:

  • If the load is specified in watt, the current I is calculated as:

I=PV

 

where, P is the power in watts, and V is the voltage in volts.

Lithium-ion batteries:

  • The required battery size 

    Bliion

     

     for litium-ion batteries is calculated by the battery size calculator as:

Bliion=100It100Q

 

where, I is current in ampere, t is the duration in hours and Q is the required remaining charge in percentage.

Lead-acid batteries:

  • The battery rating of a lead-acid batteries is proportional to the discharge rate. They are typically rated for a discharge rate over 20 hours. For example, a 20 Ah battery can deliver 1 A for 20 hours, which amounts to 20 Ah.
  • The rating of the battery reduces by approximately 62% if it is discharged in 1 hour. For example, if the same 20 Ah battery is discharged in one hour, it can only deliver 12.4 A for one hour, which amounts to 12.4 Ah. The battery size calculator derates the battery linearly based in this characteristic.
  • The required battery size 

    Bleadacid

     

     for lead-acid batteries is calculated by the battery size calculator as:

Bleadacid=100It(100Q)(0.02t+0.6)

 

where, I is current in ampere, t is the duration in hours, and Q is the required remaining charge in percentage.

 




Recent reviews

Hostinger Web Hosting

0 Comments

Follow Us On Social Media

[et_social_follow icon_style=”slide” icon_shape=”rounded” icons_location=”top” col_number=”auto” counts=”true” counts_num=”0″ total=”true” outer_color=”dark” network_names=”true”]