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Hailong MAX (G80) Down-Tube Battery Case (78 × 18650 / 65 × 21700)

Hailong MAX (G80) Down-Tube Battery Case (78 × 18650 / 65 × 21700)

Hailong MAX (G80) ABS down-tube case for 78 × 18650 or 65 × 21700 cells, with mounting rail, contact group, XLR charge socket, lock and 48V gauge.

At a glance

Brand
Hailong
Cell compatibility
18650 / 21700
Material
ABS plastic
Application
DIY / OEM down-tube e-bike battery packs
  • 78 × 18650 or 65 × 21700 cells
  • 368 × 127 × 90 mm ABS shell
  • XLR charge socket, contact-group base plate
  • Lock with 2 keys; frame rail included
  • 4-segment 48V charge indicator
  • BMS thickness guide: ≤14 mm / ≤10 mm
Get a Quote

The Hailong shape is one of the most common down-tube battery outlines, and the MAX (G80) is its largest version. It takes 78 × 18650 cells with the supplied holders, or 65 × 21700 cells built without holders, which allows a 48V 13S5P 21700 pack.

The kit includes the shell and lid, a mounting plate with contact group, rubber spacers, a lock with two keys, an XLR charge socket, 18650 holders, a frame rail and a 4-segment 48V indicator. The seller advises a BMS no thicker than 14 mm for 18650 builds and 10 mm for 21700.

Specifications

ParameterValue
Max layout13S5P (21700) / 78 × 18650

Models & specifications

ModelMax cellsLayoutsCharge portDischargeLockGaugeDimensionsBMS space
Hailong MAX (G80)78 × 18650 / 65 × 21700 (21700 without holders)e.g. 13S5P 48V (21700)XLRContact group on mounting plateLock with 2 keys4-segment 48V indicator368 × 127 × 90 mmBMS ≤14 mm thick (18650) / ≤10 mm (21700)

What’s in the box

Case only, no cells, BMS or nickel strip (nickel strip optional where noted)

Highlights

  • ****: 78 × 18650 or 65 × 21700 cells.
  • ****: 368 × 127 × 90 mm ABS shell.

FAQ

Are cells included?

No. This is an empty enclosure; cells, BMS and wiring are not included.

What voltage can I build?

See the layouts in the model table; the charge gauge voltage must match the pack.

Wholesale, quote-only enclosures (case only, no cells or BMS). Tell us the cell format, S/P layout, voltage of the charge gauge and quantity and we will reply with a quotation.