XS Power's billet aluminum hold-downs and side-mount boxes are engineered to keep high-output audio batteries fixed in place under the load of an SPL build. Engine-bay heat, hard launches, and trunk-floor flex will fatigue any battery hardware that wasn't dimensioned for the specific case it's clamping — XS Power's hold-downs are CNC-machined to match the exact footprint of the corresponding D-Series, XP-Series, and 545 / 680 / 925 / 975 / 1200 / 2400 / 2700 / 3100 / 3400 / 5100 cases.
Fitment by series
- HD-1200 — 1200 Series
- HD-2400 — 2400 Series + XP2000
- HD-2700 — D2700 Series + XP2500
- HD-3100 — 3100 Series + XP3000
- HD-3400 / HD-34BS — 3400 / 1400 / 1600 Series + XP1000 (HD-34BS is the matching base)
- HD-545 / HD-680 / HD-925 / HD-975 — 545 / 680 / 925 / 975 Series respectively (HD-680 also fits XP750; HD-975 also fits XP950)
- HD-5100 — 5100 Series
- Mount boxes 510 / 511 / 512 — 375 / 680 series with XP750 fitment options (510 no-window, 511 windowed, 512 no-window XP750 variant)
- Mount box 514 — 545 Series, no-window
- Mount box 527 — 925 Series GM-Direct universal mounting kit
Looking for the batteries themselves? Browse XS Power LTO lithium batteries (12V / 14V / 16V), 12V AGM car audio batteries, or 14V car audio batteries (AGM + lithium).
Looking for power supplies or chargers?
This page consolidates mounting hardware only. For 12V / 14V intelligent charging, see AGM and lithium battery chargers.





















