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Black rectangular sealed lead-acid battery pack, three cells in series, 5.94 by 4.13 by 7.80 inches

GreenTechLLC

GreenTechLLC RB1270X3A SLA Battery 36V 7AH for CyberPower UPS M750L

SKU CH-JEC8-GJGPX

A 36 V, 7 Ah sealed lead-acid pack of three 12 V cells tested and ready for the CyberPower UPS M750L

  • Battery voltage rating36 V
  • Battery capacity7 AH
  • Measurements5.94 in × 4.13 in × 7.8 in
  • Product colorBlack
  • Product typeBattery
  • Compatible withCYBERPOWER UPS M750L, RB1270 × 3A
  • Direct replacement for CyberPower UPS M750L
  • 36 V output from three 12 V 7 Ah cells
  • Tested and charged before dispatch
  • Compact 5.94 x 4.13 x 7.80 inch form factor
  • Compatible with OEM part RB1270X3A

Direct replacement for CyberPower M750L UPS

This 36 V sealed lead-acid battery pack replaces the RB1270X3A module inside the CyberPower M750L uninterruptible power supply. It delivers 7 Ah capacity through three 12 V cells wired in series. The unit arrives tested, charged and ready for immediate service.

Tool-free swap in most UPS cabinets

Installation typically requires only opening the battery compartment, disconnecting the old pack and connecting the new one using the existing leads. The 5.94 x 4.13 x 7.80 inch form factor matches the original enclosure. Misaligned terminals or reversed polarity are the most common errors during replacement.

Verify model and voltage before ordering

Confirm the UPS label reads CyberPower M750L and that the original battery carries the RB1270X3A part number. Ensure the system expects a 36 VDC input; other CyberPower units use different voltages and will not accept this pack. No charger or mounting hardware is included.

How it compares

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

Price $114.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model nameRB1270 × 3A
Part numberGTS-RB1270 × 3A-36 V
Product colorBlack
Product typeBattery
Power
Battery voltage rating36 V
Battery capacity7 AH
Size & build
Measurements5.94 in × 4.13 in × 7.8 in
Compatibility
Compatible withCYBERPOWER UPS M750L, RB1270 × 3A

Questions about this item

How can I verify the GreenTechLLC RB1270X3A is working correctly after installing it in my CyberPower UPS M750L?

After installation, power on the UPS and check that the front-panel status shows normal operation with no battery-fault indicators. The unit should hold a charge and support connected equipment during a brief mains interruption, confirming the 36 V 7 Ah pack is functioning as intended.

What comes in the box with the RB1270X3A and do I need to buy any cables or hardware separately?

The package contains the compatible SLA battery assembly (three 12 V 7 Ah cells pre-wired for 36 VDC) ready to install. No additional cables, connectors or mounting hardware are required for the CyberPower UPS M750L.

Which capacity version of the RB1270X3A should I choose for the CyberPower UPS M750L?

This model is supplied as a single 36 V 7 Ah configuration (12 V 7 Ah × 3) that matches the original RB1270X3A specification for the M750L; no alternative capacities are offered for this part number.

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