Selecting Batteries for a Product

Staff

+44 (0)1865 507778

Loc: Wantage, Oxfordshire, UK

Inquiry

NDA

Assess suitability of a battery for an application

Golden Rule

These calculations are approximate/idealised - must be tested

Golden Rule

Minimum volume/weight is usually the goal. Lithium chemistry suits this.

Golden Rule

There are hazards (explosive) with Lithium. Discuss with JonJu Tech/engineer.

Golden Rule

Battery holders and wires take a lot of volume - account for it.

Golden Rule

Re-chargeable probably smaller, but must have charger and product costs more.

White Paper

Battery Life Calculator

Battery capacity (mAhr) This is the battery capacity in mAhr Load current in mA The current at which load is a maximum Load current time/day in hours The time in hours (or fractions thereof) that load current is drawn/day Downtime current (mA) This just a secondary (still active) load level - set =0 if N/A Downtime current time/day in hrs If a secondary load current level exists use this variable, if not = 0 Sleep current in nA If the circuit has a 'sleep' current that current should be entered here in nA

An approximation of the number of days the battery may be expected to last.

Calculate