etaSTORE FAQ – Frequently asked questions and answers

Find all relevant questions and answers about our etaSTORE Battery System!
Please be aware that the etaSTORE and Battery Products are only available in the EI. We can provide you recommandations for Batteries at any time, please contact us

Which type of battery is optimal for inductive charging?

The system can be used with all types of batteries. Though it would be best to use the system in combination with lithium-based batteries (LFP, LTO) depending on the use case, since these are designed for short-term interim charging with high currents.

Which channel does the battery and the charger use to communicate with each other?

The battery and the charger do not necessarily have to communicate with each other. If desired, a CAN interface may be used in this case. As a rule, the protocol of the charger is then stored in the BMS

Can we use a standard lithium-ion battery from a vehicle manufacturer such as Linde? Is the battery manufacturer warranty maintained in this case?

  • Technically speaking, any manufacturer battery can be used.
  • Regarding the warranty, a dialogue with the OEM is necessary.
  • Wiferion can also supply alternative batteries or battery trays.

    • What battery capacity is recommended by Wiferion?

  • The system design consists of the following components:
  • Average energy consumption
  • Operating time per 24 hours
  • Charging current
  • Battery capacity
  • All above mentioned points influence each other, so that the user must consider his own situation and his needs. The battery capacity should be big enough to make sure that the available charging current of the charger can be fully used.
  • We at Wiferion will be happy to help you identify requirements and design the system.

    • Can the vehicle control system be supplied with 24 V (or battery voltage) during the charging process?

    Yes. The charging system is simply connected in parallel to other power consumers. When charging, the entire vehicle can remain supplied. This works very well with lead batteries. In case of lithium batteries, coordination with the BMS may be necessary.

    Is it possible to combine several etaSTORE LFP to have more storage/capacity?

    The etaStore LFP typ B modules can be assembled into a larger system in connecting them together. The system can be up to 2s10p modules, meaning up to 48V and 210AH. One module will take over the role of the leader battery and interface with the rest of the system.

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