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Rectangular lithium battery pack, matte finish, 72.45 x 39.5 x 40.0mm, 270.8g

Estry

Estry Standard Battery 4500mAh 7.4V for Geomax Zoom Pro Zipp10 ZT20 ZT20R Zoom 30 Zoom 20 ZBA301 ZBA302

SKU CH-28JA-BC5RS

Replacement lithium battery pack delivering 4500 mAh at 7.4 V for Geomax Zoom Pro, Zipp10, ZT20, ZT20R, Zoom 30 and Zoom 20 survey instruments

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity4,500 mAh
  • Battery voltage rating7.4
  • Product typeBatteries
  • Replaces original Geomax batteries with exact specification match
  • 4500mAh capacity at 7.4V delivers 32.56Wh for extended field sessions
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards
  • Fits Zoom Pro, Zipp10, ZT20, ZT20R, Zoom 30 and Zoom 20 models

Compatible Geomax Survey Models

This replacement battery fits Geomax Zoom Pro, Zipp10, ZT20, ZT20R, Zoom 30 and Zoom 20 instruments. It replaces original part numbers ZBA301 and ZBA302. The pack delivers 7.4 V and 4500 mAh capacity for extended field sessions. Safety certifications include ISO9001, RoHS, CE, UN38.3 and MSDS.

Who This Suits and Who Should Look Elsewhere

Survey crews needing a direct lithium replacement for the listed Geomax controllers will find the correct voltage and connector match. Users whose equipment requires a different voltage, a higher capacity than 4500 mAh, or a battery form factor other than 72.45 x 39.5 x 40.0 mm must select another product. The single included pack weighs 270.8 g.

Deciding Specification — Voltage and Capacity

The critical match is 7.4 V combined with 4500 mAh (32.56 Wh). If the original battery label shows these values and the part number is ZBA301 or ZBA302, this unit is the correct fit. A different voltage or capacity means the battery will not power the instrument correctly.

How it compares

Measured against everything we stock in Household Batteries & Chargers, at today’s prices. Recalculated every night.

Price $69.99
Pricier than about 91% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameGeomax
Product typeBatteries
Power
Battery typeLithium
Battery capacity4,500 mAh
Battery voltage rating7.4
In the box
Battery pack size1-pack

Questions about this item

Will the 72.45 x 39.5 x 40.0 mm dimensions fit the battery compartment of my ZT20?

The pack measures 72.45 x 39.5 x 40.0 mm and weighs 270.8 g, matching the original ZBA301/ZBA302 form factor for Zoom Pro, Zipp10, ZT20, ZT20R, Zoom 30 and Zoom 20.

How do I install the battery and what step is often missed?

Power off the instrument, open the battery latch, insert the pack until it clicks, then close the latch; the step often missed is confirming the device recognises 7.4 V before starting a survey.

When should I replace the 4500 mAh lithium pack?

Replace when runtime falls noticeably below the 32.56 Wh rating or the pack no longer holds a full charge; the built-in over-charge, over-discharge, over-voltage and short-circuit protection helps extend usable life.

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