Q-Battery

Q-Battery 12LS-38 · UPS battery 12V 38Ah

Reference: BOL-QBATTERY-12LS-38

The Q-Battery 12LS-38 is an UPS battery with 12 V and 38 Ah, measuring 197 × 165 × 170 mm.

Where the Q-Battery 12LS-38 fits

The Q-Battery 12LS-38 replaces the original batteries in a UPS. Check dimensions, terminal type (F1 or F2) and capacity so it fits the unit.

The 12LS-38 belongs to the Q-Battery AGM STANDARD range. The full range of Q-Battery batteries

Equivalents and alternatives to the Q-Battery 12LS-38

Other AGM batteries that fit the 12LS-38's tray with the same polarity: an AGM can only be replaced by another AGM.

ModelTechnologyCapacityDimensions (mm)
Fulbat FP12-40AGM40 Ah197 × 165 × 170
Fulbat FP12-40FRAGM40 Ah197 × 165 × 170
Long WPS40-12AGM40 Ah199 × 166 × 171
Long WPS40-12NAGM40 Ah199 × 166 × 171
Long WPL40-12AGM40 Ah199 × 166 × 171
Long WPL40-12NAGM40 Ah199 × 166 × 171

Q-Battery 12LS-38 vs 12LS-45 and 12LS-33

Torn between the 12LS-38 and another similar Q-Battery? This is what changes:

ModelCapacityDimensions (mm)Weight
Q-Battery 12LS-38 (this one)38 Ah197 × 165 × 17013.2 kg
Q-Battery 12LS-4545 Ah197 × 165 × 17014.5 kg
Q-Battery 12LS-3335 Ah195 × 130 × 15910.6 kg
  • Q-Battery 12LS-45: 7 Ah more, the same dimensions.
  • Q-Battery 12LS-33: 3 Ah less, a different case (195 × 130 × 159 mm).

AGM technology in the 12LS-38

Inside, the 12LS-38 has glass fibre separators (AGM) that hold the electrolyte. The 12LS-38 needs a charger with an AGM mode that does not exceed 14.7 V.

Before ordering the 12LS-38, check this

  • The 12LS-38 needs 197 × 165 × 170 mm of space: measure it with the hold-down clamp in place.
  • With 38 Ah, the 12LS-38 replaces an original battery of that capacity or slightly less.

Part numbers and codes for the Q-Battery 12LS-38

This is how the Q-Battery 12LS-38 appears on the label and in parts catalogues:

Commercial reference12LS-38
Terminal typeF11 (M6)
Not to be confused withQ-Battery 12LS-3.4 (3.4 Ah), Q-Battery 12LS-18 (18 Ah), Q-Battery 12LS-33 (35 Ah)

Frequently asked questions about the Q-Battery 12LS-38

12LS-38 or 12LS-45: which one suits me?

Compared with the 12LS-38, the Q-Battery 12LS-45 has 7 Ah more. With 45 Ah, the 12LS-45 runs longer between charges than the 12LS-38 (38 Ah). Both measure 197 × 165 × 170 mm, so they fit the same tray.

How much does the Q-Battery 12LS-38 weigh?

13.2 kg, with 38 Ah of capacity. For reference, the Q-Battery 12LS-45 (45 Ah) weighs 14.5 kg.

Which battery is equivalent to the Q-Battery 12LS-38?

Only other AGM batteries with its dimensions and polarity: Fulbat FP12-40, Fulbat FP12-40FR and Long WPS40-12. Neither an EFB nor a conventional battery replaces the 12LS-38.

Which charger does the Q-Battery 12LS-38 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.

Other options if you are unsure about the 12LS-38

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