Solar charge controller Review

For anyone looking to store power from a larger (roof-mounted) solar array, the SolarX 4K could be a key component. It converts high voltages into levels that battery systems can “digest” more efficiently. It pairs perfectly with Bluetti’s own Apex 300 storage unit, and in theory, it can also work with third-party systems — assuming you’ve got the right cables on hand. That’s also where one of our small complaints comes in: Bluetti doesn’t include the pricey DC output cables or the fuse box mentioned in the manual. Depending on your setup, that adds both cost and effort that users should factor in ahead of time. To make matters a bit more confusing, Bluetti’s own battery lines use different connectors (P090D vs P150D), which doesn’t exactly make things easier for customers. When it comes to accessories, there’s definitely room for improvement.

For anyone looking to store power from a larger (roof-mounted) solar array, the SolarX 4K could be a key component. It converts high voltages into levels that battery systems can “digest” more efficiently. It pairs perfectly with Bluetti’s own Apex 300 storage unit, and in theory, it can also work with third-party systems — assuming you’ve got the right cables on hand. That’s also where one of our small complaints comes in: Bluetti doesn’t include the pricey DC output cables or the fuse box mentioned in the manual. Depending on your setup, that adds both cost and effort that users should factor in ahead of time. To make matters a bit more confusing, Bluetti’s own battery lines use different connectors (P090D vs P150D), which doesn’t exactly make things easier for customers. When it comes to accessories, there’s definitely room for improvement.