Ritar

Ritar RT1245S · UPS battery 12V 4.5Ah

Reference: BOL-RITAR-RT1245S

Ritar RT1245S: UPS battery with 12 V and 4.5 Ah, measuring 195 × 47 × 76 mm.

The Ritar RT1245S at a glance

The Ritar RT1245S replaces the original batteries in a UPS. The RT1245S spends most of its life on float charge, waiting for a power cut.

The RT1245S belongs to the Ritar RITAR RT range. More Ritar batteries

Equivalents and alternatives to the Ritar RT1245S

As the RT1245S is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

ModelTechnologyCapacityDimensions (mm)
Fulbat FP12-4LAGM4 Ah195 × 47 × 76

Ritar RT1245S vs RT1232 and RT1250

The real differences between the RT1245S and the closest Ritar models:

ModelCapacityDimensions (mm)Weight
Ritar RT1245S (this one)4.5 Ah195 × 47 × 761.5 kg
Ritar RT12323.2 Ah134 × 67 × 671.25 kg
Ritar RT12505 Ah90 × 70 × 1071.35 kg
  • Ritar RT1232: 1.30 Ah less, a different case (134 × 67 × 67 mm).
  • Ritar RT1250: 0.5 Ah more, a different case (90 × 70 × 107 mm).

Inside the RT1245S: AGM technology

Inside, the RT1245S has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

What to look at before buying the RT1245S

  • Measure the space: the RT1245S takes up 195 × 47 × 76 mm.
  • Your current battery should say about 4.5 Ah; a little more is also fine.

Ritar RT1245S codes and part numbers

Shops, garages and catalogues identify the RT1245S with these codes:

Commercial referenceRT1245S
Terminal typeF1/F2
Not to be confused withRitar RT1245 (4.5 Ah)

Frequently asked questions about the Ritar RT1245S

Ritar RT1245S or RT1232?

Compared with the RT1245S, the Ritar RT1232 has 1.30 Ah less. With 4.5 Ah, the RT1245S runs longer between charges than the RT1232 (3.2 Ah). Mind the space: the RT1232 measures 134 × 67 × 67 mm.

How much does the Ritar RT1245S weigh?

The RT1245S weighs 1.5 kg. For reference, the Ritar RT1232 (3.2 Ah) weighs 1.25 kg.

Which battery is equivalent to the Ritar RT1245S?

Only other AGM batteries with its dimensions and polarity: Fulbat FP12-4L. Neither an EFB nor a conventional battery replaces the RT1245S.

What is the difference between F1 and F2 terminals?

The tab width: F1 is 4.8 mm and F2 is 6.35 mm. Most UPS units use F2; check your unit's connector before ordering.

More batteries to compare with the RT1245S

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