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Cylindrical lithium battery, blue shrink wrap, 70.63 x 19.6 mm

Estry

Estry 2200mAh 3.7V Lithium Battery for Inova T4 Old Style UR611 FLB-LIN-7

SKU CH-CEM0-33YT8

A 2200mAh 3.7V lithium replacement battery for Inova T4 old-style lights using part numbers FLB-LIN-7 or UR611

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity2,200 mAh
  • Battery voltage rating3.7
  • Product typeBatteries
  • Exact-fit replacement for Inova T4 Old Style UR611
  • 2200 mAh lithium cell delivers 8.14 Wh runtime
  • Built-in overcharge, over-discharge and short-circuit protection
  • Certified to ISO 9001, RoHS, CE and UN 38.3 standards
  • Compact 70.63 × 19.6 × 19.6 mm pack weighs 76.0 g

Direct replacement for Inova T4 Old Style UR611

This Estry lithium battery matches the original FLB-LIN-7 specifications for Inova T4 Old Style lights. It delivers 2200mAh capacity at 3.7V with 8.14Wh energy rating. The single pack design fits directly into compatible flashlight models without modification. Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards for safety compliance.

Thermal stability and protected operation

Built-in protection circuits guard against overcharge, over-discharge, over-voltage and short circuit conditions during normal use. The lithium chemistry maintains consistent voltage output across the discharge cycle. At 76.0g weight and 70.63 x 19.6 x 19.6mm dimensions, it integrates without adding bulk. No active cooling is required for standard flashlight operation.

Sustained output for extended runtime

The 2200mAh capacity supports prolonged illumination periods in compatible Inova T4 Old Style and UR611 models. Protection circuits remain active during continuous discharge to prevent cell damage. Not suitable for devices requiring higher voltage platforms or proprietary communication protocols. Buyers needing multi-pack configurations or different form factors should verify compatibility before purchase.

How it compares

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

Price $14.99
Pricier than about 67% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameInova
Product typeBatteries
Power
Battery typeLithium
Battery capacity2,200 mAh
Battery voltage rating3.7
In the box
Battery pack size1-pack

Questions about this item

How do I install the Estry 2200mAh 3.7V battery into my Inova T4 Old Style UR611 light, and what step is often missed?

Open the light body, remove the old FLB-LIN-7 pack, insert the new 70.63 x 19.6 x 19.6 mm cell with the correct polarity, then fully charge it before first use to activate the protection circuit.

What maintenance will this lithium pack need and when should I replace it?

Store at 3.7 V nominal voltage in a cool place if unused for long periods; replace the 76.0 g pack once runtime drops noticeably below the rated 8.14 Wh capacity.

What limit appears first during sustained high-drain use of this 2200mAh cell?

The built-in over-discharge and short-circuit protection will cut output before the cell overheats, preserving the UN38.3 certified safety margins.

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