 Shares of DPW Holdings Inc. more than doubled in very active premarket trading Monday, after the holding company said its Coolisys Technologies Corp. business has introduced new lines of electric vehicle chargers for household and commercial use. Trading volume ballooned to 4.9 million shares, which is already above the full-day average of about 4.84 million shares. Coolisys said the new charges can produce a full charge for an EV with a 150-mile range in just over 30 minutes. The stock, which rose 131 ahead of the open, has rallied 73.1 year to date through Friday, while the SP 500 has eased 0.2. 