Victron Energy SmartSolar MPPT Charge Controller with Bluetooth 100V 50 Amp

The SmartSolar is Victron’s step up from the BlueSolar line, and this 50 amp MPPT charge controller adds built-in Bluetooth so you can check your charging stats, adjust settings, and troubleshoot straight from your phone using Victron’s free VictronConnect app — no separate display or dongle needed.

That extra visibility matters more than it sounds. Once the controller is talking to your phone, dialing in the right charge parameters for your specific battery chemistry gets a lot easier — we cover the settings worth double-checking in MPPT Controller Settings: 5 That Actually Matter.

At 50 amps and 100V input, this controller can comfortably handle around 700 watts of panels on a 12V system or up to 1,400 watts on 24V, which puts it in the sweet spot for larger RV roofs, skoolies, and small off-grid cabins running more than one battery. It’s overkill for a single 100-watt panel, but if you’re planning to expand your array down the road, sizing up front saves you from buying a second controller later.

For anyone running lithium batteries or juggling multiple charge sources, the Bluetooth monitoring on this 50 amp MPPT charge controller is worth the price difference over BlueSolar — being able to glance at your phone and see exactly what your panels and batteries are doing takes a lot of the guesswork out of a DIY system.