Fox ESS · BMS box · for the Fox CQ16 HV battery
Fox ESS CQ16 BMS box
The Fox ESS BMS box for the CQ16 high-voltage battery is the battery's management unit sold as its own line, aimed at contractors who keep service spares on the van. Order it alone for a swap-out, or add it to a CQ16 battery order to make up the full set with base and cables.
Delivery in 3–5 working days (estimate). The dispatch clock starts at cleared payment.
Description
A storage battery is only as serviceable as its control electronics, and Fox supplies the CQ16's management unit as a part in its own right. For a contractor that means two useful things. A new build can be itemised properly, with battery, base, cables and BMS box each priced on the quote. And a spare on the van shelf means a control-unit replacement does not have to wait on a parts order. The figure on this page is the ex-VAT trade rate, and it is identical whether you buy one unit or a shelf of them.
Specification
| Brand | Fox ESS |
|---|---|
| Part number | FE-CQ16-BMS-BOX |
| Phase | Single-phase |
| Condition | New |
| Category | Parts & accessories · Battery Base |
| Delivery method | Parcel courier |
What it pairs with
The natural partners are all in the CQ16 family: the Fox ESS CQ16 high-voltage storage battery itself, the Fox ESS battery base for CQ16, and the Fox ESS cables for CQ16 that connect the assembly. Fox names the CQ16 for its H3 Plus range. Control electronics are sensitive to model and firmware revisions, so check the combination against Fox's current CQ16 pairing documentation before you commission.
This is the management box only: it has no storage capacity and no inverter rating of its own. It is specific to the CQ16 storage battery, not a universal Fox BMS. For anything this page can't settle, ask the trade desk before ordering or consult a competent installer.
Often bought alongside
Last updated 2026-07-19