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
A single sealed 6 V 4.5 Ah SLA battery with T1 terminals

RefurbUPS

RefurbUPS CSB CP640 6V 4.5A UPS replacement battery

SKU CH-YSMM-R276S

A CSB CP640 compatible 6 V 4.5 Ah sealed-lead-acid battery kit with T1/F1 terminals for UPS replacement

  • TypeKit/Package
  • Weight3
  • High-rate discharge design supports demanding UPS loads
  • 6 V 4.5 Ah SLA chemistry provides reliable backup power
  • CSB CP640 compatible fit ensures correct terminal alignment
  • Factory-fresh cells deliver consistent performance from day one
  • Includes step-by-step installation instructions for quick replacement

Compatible UPS Battery Kit

This RefurbUPS kit supplies a single CSB CP640 compatible 6V 4.5A sealed lead-acid battery with T1/F1 terminals. It is designed as a direct replacement cartridge for UPS units that require this specific voltage and capacity rating. The unit arrives factory fresh and includes comprehensive installation instructions.

Straightforward Swap With Basic Tools

Installation typically involves opening the UPS battery compartment, disconnecting the old cell, and connecting the new terminals in the same orientation. The included instructions guide the process step by step. The most common issue is reversing the polarity on the F1 faston tabs, so verify the positive and negative markings before securing the connections.

Steady Output During Extended Discharge

The high-rate discharge chemistry is built to maintain a stable voltage curve throughout a prolonged power outage rather than only during a brief surge. This behaviour supports connected equipment through longer runtime events without the sharp voltage drop seen in general-purpose cells. The sealed construction also prevents electrolyte leakage during continuous operation.

Highlights

  • High-rate discharge design supports demanding UPS loads
  • 6 V 4.5 Ah SLA chemistry provides reliable backup power
  • CSB CP640 compatible fit ensures correct terminal alignment
  • Factory-fresh cells deliver consistent performance from day one
  • Includes step-by-step installation instructions for quick replacement

Specifications

BrandCSB Battery
SeriesCSB Battery
TypeKit/Package
Weight3

Questions about this item

How can I verify the 6 V 4.5 A battery is working correctly after I install it?

After fitting the cartridge, run the UPS self-test or pull the mains plug to confirm the unit holds the load on battery power.

What comes in the box and what must I purchase separately?

The package contains one 6 V 4.5 A SLA battery with T1/F1 terminals and printed installation instructions; no extra hardware is required.

Which capacity should I choose for a CSB CP640 UPS?

The kit supplies the single 6 V 4.5 Ah cartridge specified for the CP640, so no alternative capacity is needed.

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.