Needed a battery charger and started looking for Ctek deals. Reading the comments led me to this Victron charger being better than the Ctek, and at a great price too.
Need to stack both coupons, may be able to stack them with other Click Frenzy deals too, as well as discounted gift cards.
These are top shelf chargers, and the app enables you to quickly choose the right charging profile. Build quality seems better than Ctek (having owned an MXS 7.0).