Because Acer uses one power charger that powers multiple other machines, be certain you select the correct one for the Aspire E5-551 model. The Acer Aspire E5-551 power adapter is needed for two reasons, charging the battery while simultaneously providing power for the laptop. Upon choosing a replacement AC charger, selecting the Acer OEM charger is the best one to choose. If your decision is to purchase a different brand charger, make note of both the voltage and amperage output. A universal power adapter is a possibility but only if necessary.

The Acer Aspire E5-551 power adapter is responsible for two things, to charge up the main battery while simultaneously providing power for the laptop. Because Acer uses one power charger that powers multiple other machines, double-check the part number or model number of the adapter. A universal power adapter can be used but only if necessary. If buying off-brand, make sure to check both the voltage and amperage output. Upon choosing a replacement AC adapter, selecting the Acer OEM charger will probably be the safest way to go.