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Polly DP6 / DP9 High-Capacity Down-Tube Battery Cases for 18650 (70–91 cells)Polly DP6 / DP9 High-Capacity Down-Tube Battery Cases for 18650 (70–91 cells) 2

Polly DP6 / DP9 High-Capacity Down-Tube Battery Cases for 18650 (70–91 cells)

High-capacity Polly down-tube cases for 18650 cells: DP6 takes 70 cells and DP9 takes 91, enough for 52V 14S5P / 14S6P or 36V 10S9P packs.

At a glance

Brand
Reention
Cell compatibility
18650
Material
ABS plastic
Application
DIY / OEM down-tube e-bike battery packs
  • 70 or 91 × 18650 cells
  • 36V / 48V / 52V layouts up to 14S6P
  • 368 × 90 mm footprint, 113 or 141 mm high
  • ABS shell (DP6)
  • Mounting plate, lock and 2 keys
  • 48V / 52V charge indicator options
Get a Quote

DP6 and DP9 share the Polly 368 × 90 mm footprint and differ in height (113 mm and 141 mm). That extra height turns the same frame mount into a 70- or 91-cell pack, which suits fat-tire and cargo builds that need range.

Both come with the 18650 cell holders, a mounting plate and a lock with two keys. The DP6 is offered with a 48V or 52V charge indicator.

Specifications

ParameterValue
Removal stylePush-to-release
Max layout10S9P (91 × 18650)

Models & specifications

ModelMax cellsLayoutsLockGaugeDimensions
DP670 × 1865010S7P 36V / 13S5P 48V / 14S5P 52VMechanical lock, 2 keys48V or 52V indicator (option)368 × 90 × 113 mm
DP991 × 1865010S9P 36V / 13S7P 48V / 14S6P 52VMounting plate with lock/key—368 × 90 × 141 mm

What’s in the box

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

Highlights

  • ****: 70 or 91 × 18650 cells.
  • ****: 36V / 48V / 52V layouts up to 14S6P.

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.