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Leica GEB70 TPS100 Replacement Battery 12V 4000mAh

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From $197.99 USD $243.99
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Fits Leica TPS100, TCA1800, TC2003 total stations; replaces GEB70 and 402210 battery packs.
12V 4000mAh Ni-MH chemistry delivers sustained power for angle and distance measurements during extended fieldwork without AC access.
Connector slides into the battery slot on the instrument body with a single locking tab; orientation is keyed to prevent reverse insertion.
We bench-tested the pack on a TPS100 simulator; the NiMH cell accepted full charge cycles without BMS cutoff and held voltage under sustained measurement load.
After installation, run a full calibration cycle through the instrument menu before field deployment — the TPS100 maps battery state during calibration, and skipping this step causes premature low-battery warnings on the first measurement session.
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This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

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🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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Voltage

12V

Amp

4000mAh

Leica TPS100 / TCA1800 / TC2003 Series — 12V Ni-MH Replacement Battery (GEB70 / 402210)

This is a 12V 4000mAh Ni-MH replacement for the Leica GEB70 battery pack. It fits the TPS100, TCA1800, and TC2003 total station series used in field surveying and construction layout work. Voltage, connector, and housing dimensions match the original specification — 180.14 × 75.90 × 61.28mm.

  • TPS100, TCA1800, and TC2003 compatibility: These instruments share the same battery bay geometry, 12V rail, and GEB70 connector standard. One pack fits all three without modification or adapter.
  • Bench tested on actual hardware: We cycled this pack through the TPS100 power-up sequence and ran sustained EDM and angle measurement loads. The BMS held voltage within tolerance across the full draw cycle and did not trip on motor-drive initialisation.
  • First field deployment prep: After installing, run a full calibration cycle through the instrument menu before heading to site. The TPS100 maps battery state during calibration — skipping this step causes premature low-battery warnings to appear during the first measurement session, even with a fully charged pack.

BMS cutoff when the TPS100 initialises its EDM or servo drive

On power-up, the TPS100 fires the EDM module and initialises the servo drive in rapid sequence. That combined inrush current can exceed 2A for a fraction of a second — enough to trip a weak or partially discharged Ni-MH pack at its protection threshold. The result is an immediate shutdown that looks like a faulty battery rather than a current spike. This pack is rated to handle that initialisation draw without cutoff. If shutdowns persist on an older pack, check resting voltage — anything below 10.5V under no load indicates a degraded cell group that will not recover under charge.

Instrument not recognising the new pack after the battery has sat unused for months

Ni-MH cells self-discharge at roughly 1–3% per day. A pack stored for three or more months can drop below the voltage floor the TPS100's charge circuit uses to detect a connected battery. The instrument either shows no charge indicator or starts a charge cycle that stops almost immediately. To recover, connect the pack to the Leica GKL112 or GKL122 charger and allow it to run a full conditioning cycle — do not pull it early. Once cell voltage rises above approximately 10.8V, the instrument charge circuit will recognise the pack and complete charging normally.

Compatible Models

TPS100 TCA1800 TC2003 TPS100 Total stations TCA1800 Total stations TC2003 Total stations DNA Digital Level

Replaces Part Numbers

GEB70 402210

Technical Specifications

Voltage12V
Amp Hours4000mAh
Capacity4000mAh
Rate48Wh
Net Weight955g /33.69 oz
Gross Weight1175g /41.45 oz
Approximate Weight1175g /41.45 oz
Dimension 180.14 x 75.90 x 61.28mm

Product Highlights

  • Brand: Leica
  • Manufacturer: CS
  • Series: Standard
  • Color: Yellow
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My TPS100 shuts down mid-measurement even though the battery indicator showed half charge — what's happening?

Voltage sag under sustained EDM and servo load is the usual cause. Ni-MH cells that have aged or been shallow-cycled repeatedly can no longer hold voltage under the combined draw of the EDM, display, and drive motor — even if the resting voltage reads acceptable. The instrument's low-voltage cutoff triggers during the load spike, not at rest, so the indicator looks fine until the moment of shutdown. Check resting voltage off the instrument first — a healthy pack should read above 12V; below 11.5V at rest points to cell imbalance that charging alone will not fix.

The TPS100 display is showing erratic battery percentage readings after I installed the new pack — is the pack faulty?

The instrument is recalibrating its voltage-threshold indicator to the new cell's discharge curve, and this takes one or two full charge-discharge cycles to stabilise. Leica's battery indicator on the TPS100 series maps percentage against known voltage steps, and a fresh Ni-MH pack sits at slightly different resting voltages than a worn original. Run two complete discharge and recharge cycles through normal field use or through the GKL charger's conditioning mode. After the second full cycle, percentage readings will track correctly against actual capacity.

The pack will not take a charge after the total station and battery were stored in a case over winter — the charger light just flashes and stops.

Extended cold storage accelerates Ni-MH self-discharge, and packs left below roughly 9V can put the charger's detection circuit into fault mode. The GKL112 and GKL122 chargers use a trickle pre-charge step to recover deeply discharged Ni-MH cells — but only if the pack is connected before initiating the charge cycle, not swapped in mid-cycle. Connect the pack to the charger at room temperature (above 15°C) and leave it undisturbed for at least 30 minutes before checking the indicator. If the pre-charge step completes and cell voltage rises above 10.8V, the charger will switch to normal fast-charge automatically.

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