Fotis Dulos appeared Monday in Stamford Superior Court after officials reported the battery level on the ankle-worn device fell below 25% at least four times in the past month.
Jennifer Dulos, of New Canaan, vanished May 24 and hasn't been seen since. She and Fotis Dulos were in the middle of a contentious divorce and child custody case.
Fotis Dulos and his girlfriend, Michelle Troconis, have pleaded not guilty to charged with evidence tampering and hindering prosecution charges. Police allege they discarded items containing Jennifer Dulos' blood and took other coverup actions.
Fotis Dulos remains free after posting $1 million bail.
RELATED: Girlfriend of Jennifer Dulos' estranged husband turns herself in to Connecticut police
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