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Rectangular lithium battery pack, matte finish, 69.4 x 37.0 x 37.0mm

Estry

Estry 18650 14.4V 2600mAh replacement battery

SKU CH-9TZS-VN56T

A 14.4V 2600mAh lithium replacement pack measuring 69.4 x 37.0 x 37.0mm and weighing 270.0g, certified to ISO9001, RoHS, CE and UN38.3 for Ultenic H18650CH-4S1P devices

  • TypeBatteries
  • Battery Pack1-pack
  • Battery TypeLithium
  • Battery Capacity2600mAh
  • Battery Voltage14.4
  • 4 V 2600 mAh powers longer cleaning sessions
  • 44 Wh lithium pack matches original runtime
  • 4 × 37.0 × 37.0 mm fits Ultenic H18650CH-4S1P exactly
  • CE, RoHS, ISO 9001, UN 38.3 certified for safety
  • 0 g lightweight design keeps vacuum manoeuvrable

Direct Ultenic H18650CH-4S1P Replacement

This Estry battery matches the original H18650CH-4S1P part number for Ultenic devices. It delivers a 14.4V nominal voltage and 2600mAh capacity in a single lithium pack. Owners needing an exact-specification swap for a depleted pack will find the correct fit. It is not for users whose equipment requires a different voltage, capacity or connector layout.

Protected Lithium Chemistry With Certified Safety

The cell includes overcharge, over-discharge, over-voltage and short-circuit protection circuits. It carries ISO9001, RoHS, CE, UN38.3 and MSDS certifications for transport and material compliance. Normal operation stays within the designed 37.44Wh energy envelope without external cooling. No acoustic or thermal management data is provided by the supplier.

Compact 69.4 x 37.0 x 37.0mm Hard-Case Pack

The rigid enclosure measures 69.4 by 37.0 by 37.0 millimetres and weighs 270.0 grams. Its form factor mirrors the original battery so the existing latch and compartment align without modification. Buyers must verify the H18650CH-4S1P part number on their old pack before ordering.

Highlights

  • 4 V 2600 mAh powers longer cleaning sessions
  • 44 Wh lithium pack matches original runtime
  • 4 × 37.0 × 37.0 mm fits Ultenic H18650CH-4S1P exactly
  • CE, RoHS, ISO 9001, UN 38.3 certified for safety
  • 0 g lightweight design keeps vacuum manoeuvrable

Specifications

BrandUltenic
TypeBatteries
Battery Pack1-pack
Battery TypeLithium
Battery Capacity2600mAh
Battery Voltage14.4

Questions about this item

How do I install the Estry 18650 14.4V 2600mAh battery and what step is often missed?

Power off the device, open the battery compartment, disconnect the old pack, connect the new H18650CH-4S1P pack matching the polarity, secure it in the 69.4 x 37.0 x 37.0mm slot, then fully charge before first use.

What maintenance or replacement will this lithium pack need over time?

Expect gradual capacity loss after several hundred charge cycles; store at roughly 50 % charge if unused for weeks, avoid deep discharge, and replace the pack when runtime drops below your needs.

What limit appears first during sustained high-drain use of this 37.44Wh battery?

The built-in over-current and over-temperature protection will cut output before the cells overheat, so maximum continuous current is the practical ceiling during heavy loads.

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