Translations:Lead acid battery/37/en

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There is no type of storage that is perfectly efficient. Lead acid batteries inherently lose some energy as it is put into the battery and some as it is withdrawn, generally as heat. A FLA battery is typically only 80-85% efficient, whereas a VRLA battery is has a slightly higher efficiency of 85-90% efficiency. This is round -trip efficiency, meaning that if 100Wh of energy arrives from a PV module is stored in a lead acid battery that:

  • 80-85 Wh will be able to be withdrawn from the FLA battery.
  • 85-90 Wh will be able to be withdrawn from the VRLA battery.
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