Battery Building ToolsCell Database US18650FT

✱ Render

18.35 × 65.1 mm · 38.8 g

18650LFP

Sony US18650FT

Name: Sony US18650FT Lithium Battery Cell
Brand: Sony

Sony · released 2014

Capacity1100 mAh3.52 Wh · 90.72 Wh/kg

Rated continuous10 A10A

Resistance17 mΩDC internal resistance

Voltage window3.2 V2 – 3.6 V

Standard charge1050 mA~1 h to full

Build a pack with this cell →Download spec sheet (PDF)Open the datasheet

At 1100 mAh, this ranks #167 of 169 18650 cells in our database. On the lower end for capacity among 18650 cells. Higher discharge than 80% of 18650 cells in our database. Great for high-drain builds.

Full specifications

Electrical
Chemistry	LFP
Nominal voltage	3.2 V
Max charge voltage	3.6 V
Discharge cutoff	2 V
Max continuous discharge	10A
Standard charge current	1050 mA
Standard discharge current	220mA
Internal resistance	17 mΩ
Physical
Form factor	18650
Dimensions	18.35mm × 65.1mm
Weight	38.8 g
Top type	Flat Top
Protected	No
Wrap color	Green
Insulator ring	Black
Performance
Capacity	1100 mAh
Energy	3.52 Wh
Specific energy	90.72 Wh/kg
Energy density	204.46 Wh/L
Power density (gravimetric)	825 W/kg
Power density (volumetric)	1,859 W/L
Year released	2014
Operating Limits
Charge temp	0°C to 45°C
Discharge temp	-20°C to 60°C

At the standard 1050 mA charge rate, a full charge takes about 1 hours. The last bit is a slow taper to top it off.

Voltage operating window

Cutoff
2VNominal
3.2VMax charge
3.6V

Usable range: 1.6V

C-rate conversion: Sony US18650FT (1100mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.22 A	5h 00m
0.5C	0.55 A	2h 00m
1C	1.1 A	1h 00m
2C	2.2 A	30m
3C	3.3 A	20m
5C	5.5 A	12m
8C	8.8 A	7m 30s

Highlighted row is closest to the rated 10A continuous discharge.

Charging

Rate	Current	Estimated time
0.5C	550 mA	~2h 00m
1C	1,100 mA	~1h 00m

These are estimates for the constant-current phase. Real charge time is a bit longer because of the slow taper at the end.

Datasheet

Download official Sony US18650FT datasheet (PDF) ↗

Pack scaling

Series voltage configurations

Config	Nominal V	Max V	Min V	Common use
4S	12.8V	14.4V	8V	12V system (LiFePO4)
8S	25.6V	28.8V	16V	24V system
12S	38.4V	43.2V	24V	36V system
16S	51.2V	57.6V	32V	48V powerwall / ebike

Parallel capacity scaling

Config	Capacity	Energy	Max discharge
1P	1,100 mAh	3.5 Wh	10 A
2P	2,200 mAh	7 Wh	20 A
3P	3,300 mAh	10.6 Wh	30 A
4P	4,400 mAh	14.1 Wh	40 A
5P	5,500 mAh	17.6 Wh	50 A
6P	6,600 mAh	21.1 Wh	60 A

Example pack configurations

4S1P

12V system

4 cells12.8V nominal1,100mAh14Wh10A maxCell weight: 0.16 kg (add ~15% for wiring and BMS)

4S2P

12V with more capacity

8 cells12.8V nominal2,200mAh28Wh20A maxCell weight: 0.31 kg (add ~15% for wiring and BMS)

8S1P

24V system

8 cells25.6V nominal1,100mAh28Wh10A maxCell weight: 0.31 kg (add ~15% for wiring and BMS)

16S1P

Powerwall / 48V ebike

16 cells51.2V nominal1,100mAh56Wh10A maxCell weight: 0.62 kg (add ~15% for wiring and BMS)

Design a custom pack with this cell:

Pack Planner →Pack Designer →

Application suitability

PowerwallsToo low capacity for practical powerwall use. You'd need too many cells.

Ebike PacksNot enough discharge for ebike use. Voltage sag would be a problem under load.

Car AudioMight work for smaller setups. Check your amp's peak current draw.

High-Drain VapingBelow the 25A Mooch CDR threshold that high-drain vaping needs. Use a higher-drain cell.

FlashlightsLower capacity means shorter runtime. Better cells are available for flashlight use.

Power ToolsMay work for lighter-duty tools. Check your tool's current requirements.

Physical dimensions

Dimensions18.35mm × 65.1mm

TopFlat Top

Format18650

Similar cells

Same format and chemistry, within ±500mAh capacity:

Cell	mAh	CDR	Wh	Weight	Wh/kg
Sony US18650FT (this cell)	1100	10A	3.52	38.8g	90.72
Lishen (LS) IFR-18650EC	1500	5A	4.8	42g	114
A123Systems APR18650M1A	1100	30A	3.6	39g	93

Build with this cell

Pack PlannerSize your pack. Voltage, capacity, runtime, BMS.Pack Designer2D & 3D layout for your exact cell arrangement Pack BuilderBalance cells by capacity and internal resistance

Frequently asked questions

What is the capacity of the Sony US18650FT?

What is the maximum discharge rate of the Sony US18650FT?

What does the Sony US18650FT weigh?

Can I use the US18650FT for vaping?

What temperature range can the US18650FT operate in?

What size is the Sony US18650FT?

Handling and safety

Lithium cells can be dangerous if mishandled. A few things to keep in mind:

Never charge above 3.6V or discharge below 2V.
Store cells at around 3.6-3.8V (roughly 40-60% charge) for long-term storage.
Don't mix cells with different capacities, chemistries, or states of charge in a pack.
Inspect wraps before use. A torn wrap can cause a short circuit.
Always use a BMS or balance charger appropriate for your pack configuration.
Keep cells away from metal objects, keys, and coins. A short across the terminals can cause fire.

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Specs come from manufacturer datasheets and independent testing; Mooch-tested discharge ratings are shown when available because they reflect real continuous performance better than headline datasheet numbers. Browse the full 18650 & 21700 cell database to compare every cell.

Disclaimer: We do our best to keep the information on this page accurate, but we cannot guarantee that all specifications are correct or up to date. Cell characteristics can vary between production batches and may change over time. Do not rely solely on this data for safety-critical applications. Always verify against the manufacturer's official datasheet before use.