Q-Battery

Q-Battery 12LS-2.9 · UPS battery 12V 2.9Ah

Reference: BOL-QBATTERY-12LS-2.9 · EAN 4250889610074

The Q-Battery 12LS-2.9 is an UPS battery with 12 V and 2.9 Ah, measuring 79 × 56 × 99 mm.

Where the Q-Battery 12LS-2.9 fits

The Q-Battery 12LS-2.9 replaces the original batteries in a UPS. Before ordering the 12LS-2.9, check the terminal type and terminal orientation in your UPS.

The 12LS-2.9 belongs to the Q-Battery AGM STANDARD range. The full range of Q-Battery batteries

Equivalents and alternatives to the Q-Battery 12LS-2.9

No other reference in the catalogue fully matches the dimensions and polarity of the 12LS-2.9; you will find the closest ones among our uPS batteries.

Q-Battery 12LS-2.9 vs 12LS-3.4 and 12LS-2.1: which one to choose?

Torn between the 12LS-2.9 and another similar Q-Battery? This is what changes:

ModelCapacityDimensions (mm)Weight
Q-Battery 12LS-2.9 (this one)2.9 Ah79 × 56 × 991.05 kg
Q-Battery 12LS-3.43.4 Ah134 × 67 × 60.51.35 kg
Q-Battery 12LS-2.12.1 Ah178 × 35 × 601 kg
  • Q-Battery 12LS-3.4: 0.5 Ah more, a different case (134 × 67 × 60.5 mm).
  • Q-Battery 12LS-2.1: 0.80 Ah less, a different case (178 × 35 × 60 mm).

Inside the 12LS-2.9: AGM technology

Inside, the 12LS-2.9 has glass fibre separators (AGM) that hold the electrolyte. The 12LS-2.9 needs a charger with an AGM mode that does not exceed 14.7 V.

What to look at before buying the 12LS-2.9

  • The 12LS-2.9 needs 79 × 56 × 99 mm of space: measure it with the hold-down clamp in place.
  • Capacity of the 12LS-2.9: 2.9 Ah; the same as your current battery or slightly more is fine.

Q-Battery 12LS-2.9 codes and part numbers

This is how the Q-Battery 12LS-2.9 appears on the label and in parts catalogues:

Commercial reference12LS-2.9
EAN4250889610074
Terminal typeF1 (4,75mm)
Not to be confused withQ-Battery 12LSX-9 (28 Ah), Q-Battery 12LS-2.1 (2.1 Ah), Q-Battery 12LS-24 (24 Ah)

Frequently asked questions about the Q-Battery 12LS-2.9

Q-Battery 12LS-2.9 or 12LS-3.4?

Compared with the 12LS-2.9, the Q-Battery 12LS-3.4 has 0.5 Ah more. With 3.4 Ah, the 12LS-3.4 runs longer between charges than the 12LS-2.9 (2.9 Ah). Mind the space: the 12LS-3.4 measures 134 × 67 × 60.5 mm.

How much does the Q-Battery 12LS-2.9 weigh?

The 12LS-2.9 weighs 1.05 kg. For reference, the Q-Battery 12LS-3.4 (3.4 Ah) weighs 1.35 kg.

Which charger does the Q-Battery 12LS-2.9 need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

Keep comparing: alternatives to the 12LS-2.9

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