SPECTRUM BATTERIES INC.

Calculators
Home
Company Information
SBI Facilities
Products
Calculators
Warranties
Lithium Cell Characteristics
Popular Cells for Downhole Applications
Safe Handling of Lithium Batteries
MSDS Sheets
Passivation
Depassivation
Pulse-Rate Battery-Life , Temperature Conversion, Ohm's Law, Battery Life

Pulse-Rate Battery-Life Calculator

How long will 
device be used?
Required 



Result: Amp Hours 
Needed

Note: If the discharge profile changes, each must be calculated separately and then added together.
For example: If a device discharges with a small background for 30 days and then the device starts a pulse discharge for another 30 days, you must calculate this as 2 separate discharges.  The results of both discharges are then added together.

Background
Current:

    Continuous

Cycles:

Current
(Pulse Amps)
Duration
(Pulse Length)
Frequency
(Pulses per Hour,etc)

Line Item Results
(Amp Hours per Day)

Cycle 1




Per:

Cycle 2




Per:

Cycle 3




Per:

Cycle 4




Per:

Cycle 5




Per:

Created by Ross Bennett        Spectrum Batteries, Inc. 1999

Ohm's Law Calculator

Volts / Amps = Ohms

/

=

     millivolts
     volts

    

     milliamps
     amps

    ohms

Enter any two values, then press "Calculate"

      

Ohm's Law Formulas:
R=Resistance(Ohms)
E=Voltage(Volts)
I=Current (Amps)

(R=E/I) or (E=IR) or (I=E/R)

micro =   0.000001
milli = 0.001
Kilo = 1000
Mega = 1000000

Created by Ross Bennett        Spectrum Batteries, Inc. 1999

Temperature Conversion

F   = C
Enter either value, then press "Calculate"

      

Temperature Conversion
Formulas:

F = (C x 9/5)+32
C = (F - 32) x 5/9

Created by Ross Bennett        Spectrum Batteries, Inc. 1999

Battery-Life Calculator

Amps x Hours = AmpHours

x

=

    milliamps
    amps 

     days
     hours

     AmpHours

Enter any two values, then press "Calculate"

      


Created by Ross Bennett        Spectrum Batteries, Inc. 1999

Ohm's Law

When using cell manufacturer's recommended resistive load values to de-passivate cells, keep in mind that the voltage of packs will most likely be higher than the voltage of individual cells.  Thus, the resistive loads needed to de-passivate packs will be higher than cells due to Ohm's Law.

V (voltage) = I (current/amps) x R (resistance)
W (watts) = V (volts) x I (current/amps)

Spectrum Batteries, Inc.* 6910 Sprigg Rd. * Fulshear * TX * 77441

PH: 281.533.9596 * FX: 281.533.9669
TOLL FREE: 877.533.9596

CANADA: PH: 403.225.0470 * FX: 403.225.1295

Hosting by Web.com