New 12V 100Ah battery not charging

• MC

  Maarten Camps

  10/8/24, 2:02 PM

  Hi,

  I have a setup with 1 solar panel of 200W (max 40V) a Victron Bluesolar 75/15 MPPT charge controller and an Eco-Worthy 100Ah battery with Bluetooth

  Due to some shading and autumn, the solar panel rarely delivers more than 10-20 Watt

  On the Victron it is visible that ther is around 1 A of charging current towards the battery, but on the app of the battery, the power remains 0 Watts and after a couple of days, it is still at 38 Ah, like it was delivered.

  The Victron is programmed on a bulk charging voltage of max 14,6, but for now, the actual voltage of the battery is around 13,29 V

  Is there a minimum power needed before the battery starts charging?

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• MC

  Maarten Camps

  10/21/24, 6:36 PM

  Solved it myself by moving the solar panel some 30 meters further away, but on a location that doesn't have shading from trees.

  A couple of days later, both batteries are fully charged.

  I assume power must be at least 10W per battery to start charging and it would have been nice if this was printed in the spec.

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