Bought a Maypole smart charger about 10 years ago, much the same spec as a Ctek but half the price. It's still going strong after a string of Civics charging the Jazz every couple of weeks.
2 years ago bought the Ultimate speed Lidl charger for around £14 for the E. As far as I can see it does the same job, fully protected, it claims to recharge flat batteries, which the Maypole can't, but I have not had a chance to test this yet.
The Lidl only comes with croc clips, the Maypole had a set of permanent connectors too, but the SAE connectors are easily available, so I crimped one on the Lidl for a permanent cable on the E to have interchangeable chargers. The Maypole had an SAE cable to croc clips too, so you can put croc clips back on either charger for other cars.