Renault have blamed faulty batteries for electrical problems suffered in testing by McLaren and Red Bull, both teams who use their engines during Formula 1 testing at Circuit de Catalunya. McLaren had two electrical-related problems on Tuesday, the first day of the final pre-season test in Barcelona, while Red Bull’s Max Verstappen also brought out a red flag when his car stopped on track. Renault’s works team had no problems but technical head Bob Bell said it was nothing to do with the way the batteries were installed, “What we do ahead of Melbourne is that we try and shake down all of the battery systems to make sure all of the stock that are going racing are in good shape.”...
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