Very few people buy level 1 chargers, most buy level 2, so it may be hard to get recommendations. However many companies make both level 1 and level 2 chargers so what you can do is read people's comments about their level 2 chargers in forums like this or in Amazon reviews for example, and those reviews would give you a general idea about the quality of chargers the company makes. Also some companies make level 2 chargers that come with an adapter for level 1 so they can be used for both.I have a level 1 Honda OEM charger but I am looking for another as a backup charger for my 2018 Honda Claity plug-in hybrid. I have found a lot of chargers on line (ebay etc) but would like to find out if anyone had any good recommendations. I need to make sure the charger is really reliable and would not cause any harm to the internal charging circuitry or the hybrid battery. Looking forward to your response. Thank you.