Search Symmetry

Close
  1. Home
  2. Symmetry Blog
  3. Telit FAQs, Part 13

Telit FAQs, Part 13: What is the best type of battery to use with my xE910 module?

Wednesday, March 18, 2015

Question detail:

In the xE910 HW specification, it is said that the maximum voltage allowed is 4.2V (Normal Operating voltage range). Some of the latest Li-on batteries, when fully charged will rise to 4.5V (Extended Operating voltage range). Will there be a problem?

 

Answer:

Note: This explanation is for the case where the battery is directly connected to the cellular module, with no power conditioning circuitry. If you are using a power conditioning circuit you can use whichever battery you would like, as long as your circuit is able to provide the needed voltage and max current specs required by the module.

 

The module is best supplied by a 3.7V Li-Ion battery type when directly connected to the module since the 4.2V operating voltage can be met with this battery type.

The three cell Ni/Cd or Ni/MH 3.6V nominal battery types or 4V Pb(Lead) types must not be used since when directly connecting to the module the 4.2V range could be exceeded when the module is operating.

The module has an extended voltage tolerance of 4.5V however the module is not intended to operate at this voltage, only survive it.

Share

Why partner with Symmetry Electronics? Symmetry's technical staff is specially trained by our suppliers to provide a comprehensive level of technical support. Our in-house Applications Engineers provide free design services to help customers early in the design cycle, providing solutions to save them time, money and frustration. Contact Symmetry for more information.

Subscribe

Stay up to date with industry and supplier news!