CB28 Replacement Battery for Tianyu CTS622R Total Station – NC-20A Charger High Capacity

CB28 High-Capacity Replacement Battery for Tianyu CTS622R Total Station

The CB28 is a high-capacity Li-ion replacement battery engineered for the Tianyu CTS622R total station. With 4400 mAh of power, it outlasts standard batteries and keeps your instrument running through extended surveying sessions. Fully compatible with the Tianyu NC-20A charger for safe and efficient recharging.

Compatible Models

• Tianyu CTS622R Total Station
• Compatible with Tianyu NC-20A charger
• May also fit other Tianyu CTS-series total stations — contact us to verify

Specifications

Battery Type	Li-ion (Lithium-Ion)
Voltage	6 V
Capacity	2700 mAh (high-capacity)
Compatible Charger	Tianyu NC-20A
Protection	Over-charge, over-discharge, over-current, short-circuit, and thermal protection
Certification	CE, RoHS, UN38.3

Key Features

• Extended field time — 2700 mAh high-capacity design reduces the number of battery changes per shift
• NC-20A charger ready — charges safely on your existing Tianyu charging dock with no adapters needed
• Precision-molded housing — locks securely into the CTS622R battery compartment without wobble
• Multi-layer protection — BMS safeguards against common failure modes during charging and use
• Stable discharge curve — maintains accurate instrument readings even as the battery approaches depletion

What's Included

1 × CB28 High-Capacity Li-ion Battery (total station and charger not included)

Warranty: 12-month replacement warranty. All batteries undergo full charge/discharge testing before shipping.