We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular 6V 4.5Ah SLA battery with T1 F1 terminals

RefurbUPS

RefurbUPS CSB GP645 6V 4.5Ah UPS Replacement Battery

SKU CH-8PC2-ZTEF3

A compatible 6 V 4.5 Ah replacement battery cartridge with T1/F1 terminals for UPS units

  • TypeKit/Package
  • Weight3
  • High-rate discharge design delivers reliable backup power
  • 6 V 4.5 Ah capacity matches original specifications
  • Factory-fresh sealed lead-acid cell ensures long service life
  • T1/F1 terminals allow direct drop-in installation
  • Comprehensive instructions included for straightforward replacement

What this kit replaces

This RefurbUPS kit supplies a single CSB GP645 compatible 6V 4.5Ah sealed lead-acid battery with T1/F1 terminals. It is intended for UPS units that require this exact voltage and capacity combination. The cartridge arrives factory fresh and ready for immediate installation. Buyers who need a different voltage, capacity or terminal layout cannot use this kit.

Thermal and power behaviour

The battery uses high-rate discharge chemistry designed for short UPS backup cycles. In normal float service it generates minimal heat and operates silently without active cooling. Self-discharge is low so the unit holds charge during extended standby periods. No power draw occurs while the UPS is on mains supply.

Included guidance and hardware

The package includes comprehensive UPS battery replacement installation instructions that walk through safe removal and connection steps. Only the single battery cell and the printed guide are supplied; no mounting brackets, cables or management software are provided. Installers who require additional hardware must source it separately.

Highlights

  • High-rate discharge design delivers reliable backup power
  • 6 V 4.5 Ah capacity matches original specifications
  • Factory-fresh sealed lead-acid cell ensures long service life
  • T1/F1 terminals allow direct drop-in installation
  • Comprehensive instructions included for straightforward replacement

Specifications

BrandCSB Battery
SeriesCSB Battery
TypeKit/Package
Weight3

Questions about this item

How is the 6 V 4.5 Ah battery installed and which terminal step is often missed?

Disconnect the UPS from power, open the battery compartment, remove the old pack, and connect the new battery's T1/F1 terminals matching the original polarity before securing the cover.

What maintenance or replacement will this sealed lead-acid unit need later?

Expect a service life of three to five years; plan to replace the cartridge once runtime drops noticeably or the UPS reports a battery fault.

What limit appears first when the GP645 runs under sustained load?

The 4.5 Ah capacity sets the runtime ceiling; voltage will sag once the stored charge is depleted during extended outages.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.