Here are Megacell Chargers. We spent thousands on these mainly because we wanted to support a DIY community member's project and also because it does have a lot of great features, however we ordered 512 channel cabinets to handle our testing because we can test different sized batteries in them. These are brand new and never used. These allow you to test 18650 cells of lithium ion or lifepo4, you can cycle, set recharge level to whatever voltage. There really are some cool features with this charger and software that you won't get with a liitokala or zanflare.
Please refer to the megacell charger website for questions or technical advice, we are not providing tech support for these units. You will need a 5v 20a power supply to power it which you can get on Amazon for just $20. These are the original versions with the 3d printed housing. Ready to ship immediately. Links to the website and indiegogo campaign are below. You can download the software.