Round 3.5 Inch BMS LCD Display JNFN ANT R35 IP65 Gauge Marine Dash 5-60V

Most battery management displays are rectangular units built for a DIN cutout — workable until the panel is a boat helm or camper dashboard where a round instrument already occupies the hole. The JNFN ANT R35 is a 3.5 inch circular display engineered to sit in that existing opening: a 320 x 480 IPS panel behind a round bezel, an 800-nit backlight for daylight readability, IP65 front sealing, and a cable set that powers the unit directly from the management board so no separate supply has to be routed.

The screen presents state of charge as a sweeping arc alongside pack voltage, instantaneous current, temperature and the active fault code, in a layout that can be reordered for a specific dashboard. Because it communicates over both CAN and RS485, the unit can hang off an existing pack bus or connect to a single board through the service port, and the protocol preset table covers the frame sets used across the ANT and JNFN ranges.

• Round 3.5 Inch Form Factor: A 92 mm bezel fits standard instrument cutouts on marine helms and vehicle dashboards, so a conversion does not leave an empty circular hole behind.
• 800 Nit Daylight Backlight: Readable in direct sun, with automatic dimming for night running so the display does not become a distraction at the helm.
• CAN and RS485 in One Unit: The same display works on a shared pack bus or as a single-point service screen; presets cover the frame sets used by the common ANT and JNFN boards.
• Powered from the Management Board: A wide 5 to 60 V input means the unit runs from the board's auxiliary output on a 12 V system and from the pack bus on a 48 V system, with no additional converter required.
• IP65 Front Sealing: Gasketed bezel and sealed rear connector survive spray, rain and the occasional bucket of wash water on deck.
• Arc-Based SOC Presentation: State of charge reads as a sweeping arc rather than a percentage number, which is faster to interpret at a glance and closer to the analogue gauge it replaces.
• Fault Code Page: Active and stored fault codes are listed in plain text rather than a numeric table, so the person reading the screen does not need the manual open beside them.

Marine helm installations and camper van dashboards are the clearest fit, along with golf carts and utility vehicles where a round instrument hole already exists. The display also suits industrial equipment panels that were laid out around a circular gauge.

Integrators use the unit as a service screen during commissioning, then leave it installed as the operator interface, which removes the need to keep a laptop on the machine.

Each unit ships with a mounting gasket, a stainless bezel ring, a 1.5 m cable set with the connector for the management board and a printed pinout card. Displays are tested for backlight uniformity, touch-free panel bonding and reverse polarity tolerance before packing.

Ordering: Single units are available with no minimum, and OEM boot logos, start-up animation and language sets can be programmed from one hundred pieces. A 24-month limited warranty covers the display module.