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Sony VGN-BX740 Power Adapter
Because Sony uses one power charger that is most likely used on other laptop models, make sure you check the part number for the correct one. When choosing a new AC charger, the actual Sony brand is usually going to be the safest choice. The Sony VGN-BX740 power adapter is needed for two reasons, charging the battery and to provide a source of power for the unit. A universal power adapter is a possibility if yours is unavailable or backordered. If buying off-brand, please check on both the voltage and amperage output.
Signs your laptop charger will eventually need to be replaced
- The laptop does not run using just the AC power adapter
- Battery does not charge whatsoever
- Most Sony adapters can get quite warm when plugged in for any length of time
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