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3.7V 1200mAh LiPo Batteries

3.7V 1200mAh lithium polymer cells for handheld terminals, wearables, IoT sensors and small consumer electronics. Our 1200mAh range stretches from a thin, wide 4 mm cell (THOR-404478, 4 × 44 × 78 mm) to a compact 10 mm block (THOR-103040), so you can spread the capacity flat behind a display or pack it into a small deep cavity. Compare the finished sizes and request the closest fit.

1200mAh LiPo Battery Models

All available 3.7V 1200mAh models, sorted by thickness, then width, then length. Use the size tool to match your device cavity, or sort by any dimension.

15 available 1,200mAh models

Maximum Battery SpaceEnter the usable cavity inside your device (mm). We'll match models whose finished size fits.
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4 × 44 × 78 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 4 × 44 × 80 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-405251
4 × 52 × 51 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 4 × 52 × 53 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-503365
5 × 33 × 65 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 5 × 33 × 67 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-503759
5 × 37 × 59 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 5 × 37 × 61 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
5.2 × 40 × 50 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 5.2 × 40 × 52 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-653450
6.5 × 34 × 50 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 6.5 × 34 × 52 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-753048
7.5 × 30 × 48 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 7.5 × 30 × 50 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-783448
7.8 × 34 × 48 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 7.8 × 34 × 50 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
8 × 29 × 52 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 8 × 29 × 54 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-803048
8 × 30 × 48 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 8 × 30 × 50 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-903048
9 × 30 × 48 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 9 × 30 × 50 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
9.5 × 17 × 68 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 9.5 × 17 × 70 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-961766
9.6 × 17 × 66 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 9.6 × 17 × 68 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
10 × 25 × 40 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 10 × 25 × 42 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)
3.7V 1,200mAh LiPo battery THOR-103040
10 × 30 × 40 mmThickness ±0.2 mm; Width/Length ±0.5 mm
Approx. 10 × 30 × 42 mmPCM-dependent
1,200 mAh
3.7 V
PCM included (standard)PH2.0 / Molex 1.25 (custom available)

Finished dimensions depend on PCM, insulation, connector and wire-harness configuration and are confirmed on the engineering drawing for the selected model.

Matching 1200mAh to Flat or Deep Cavities

1200mAh gives a working shift of runtime in a footprint that still fits pocket devices. The choice here is between spreading it flat or packing it deep: a 4 mm cell (4 × 44 × 78 mm) tucks behind a panel or display, while a 10 mm block (10 × 30 × 40 mm) suits a small, deep housing. Compare each model’s finished thickness, width and length to your usable cavity and leave room for the PCM and harness on the length. If you are weighing 1000mAh, 1200mAh or 1500mAh, the sizes overlap — pick by the exact cavity and runtime, and we can advise.

Read the LiPo Battery Size and Device Fit Guide →

Need a 1200mAh LiPo Battery for Your Project?

Tell us your available battery space, working and peak current, connector requirement and quantity. Our engineering team will review the selected 5000mAh model and confirm the suitable finished configuration.

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    1200mAh LiPo Battery FAQ

    What devices typically use a 1200mAh LiPo battery?

    1200mAh suits handheld scanners and terminals, larger wearables, IoT sensors and small consumer electronics — anywhere you want a shift of runtime without a large cell. Our range covers both flat-and-wide and compact-and-deep footprints.

    What is the thinnest 1200mAh cell?

    4 mm (THOR-404478, 4 × 44 × 78 mm). It is thin and comparatively wide, so it fits best behind a flat panel or display where you have area but little depth.

    Do you have a compact, deep 1200mAh option?

    Yes — about 10 × 30 × 40 mm (THOR-103040), which suits small housings where depth is available and board length is limited.

    How long will 1200mAh run?

    Roughly, runtime in hours ≈ 1200 ÷ your average mA. A device drawing 120 mA runs about 10 hours; one drawing 60 mA about 20. Send your load profile for a firm estimate.

    Should I choose 1000, 1200 or 1500mAh?

    The sizes overlap, so choose by your exact cavity and required hours rather than the number. Send us both and we will map them onto the closest fit.

    Can the connector, wiring and PCM be tailored?

    Yes. PH2.0 and Molex 1.25 are standard; connector, polarity, wire gauge, lead length and PCM/NTC protection are configurable and confirmed on the engineering drawing.