About this replacement
Minelab Equinox 700 / 900 / Manticore / ELITE — 3.7V Li-ion Replacement Battery (3011-0456)
This 3.7V, 6700mAh (24.79Wh) lithium-ion battery replaces the original pack in the Minelab Equinox 700, Equinox 900, Manticore, and ELITE detector series. It matches OEM part numbers 3011-0456, 3011-0486, 3030-0046, and 3030-0048. Physical dimensions are 65 × 36 × 18mm — confirm against your existing pack before ordering.
- Equinox 700 / 900 / Manticore / ELITE platform fit: These detectors share the same battery bay geometry, connector pinout, and BMS handshake protocol. One cell format covers the full current lineup, including waterproof submersible variants that use the same sealed pack housing.
- Bench tested on actual hardware: We ran this pack through the detector's multi-frequency initialisation sequence, including the simultaneous-multifrequency (SMF) coil energisation burst. The BMS held voltage without tripping on the inrush spike and sustained stable output through the wireless module and backlight at full draw.
- First power-up after installation: After fitting the new pack, run a full ground balance and noise cancel sequence before fieldwork. The detector maps battery state during this routine — skipping it causes the low-battery indicator to fire early on the first session, even with a fully charged cell.
BMS lockout after the Equinox or Manticore sat unused in a carry case for months
A lithium-ion cell left at low state of charge for extended periods can drop below the BMS recovery threshold — typically around 2.5V per cell. When this happens, the detector's charger circuit sees the pack as faulted and refuses to begin a charge cycle. The fix is a slow pre-charge at low current (trickle mode) using a compatible Li-ion charger that supports recovery charging. Once cell voltage climbs above 3.0V, the BMS re-initialises and the standard charge cycle resumes normally.
Detector powers on but shuts off the moment the coil starts transmitting
This is a BMS overcurrent trip, not a charge issue. The transmit coil — especially in multi-frequency mode — pulls a sharp current spike at the moment it energises. A degraded or partially discharged cell can't sustain the instantaneous draw, so the BMS cuts output to protect the cell. Charge the pack fully before testing again. If shutdown still occurs at full charge, the original cell's internal resistance has risen too high and replacement is the correct next step — confirm with a resting open-circuit voltage of 4.1–4.2V after a full charge cycle.