Battery Building ToolsCell Database UR18650SA

✱ Render

18.1 × 64.8 mm · 44.3 g

18650NMC

Sanyo UR18650SA

Name: Sanyo UR18650SA Lithium Battery Cell
Brand: Sanyo

Sanyo

Capacity1200 mAh4.44 Wh · 100.23 Wh/kg

Rated continuous10 A10A

Voltage window3.7 V2.5 – 4.2 V

Standard charge840 mA~1.4 h to full

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

At 1200 mAh, this ranks #166 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	NMC
Nominal voltage	3.7 V
Max charge voltage	4.2 V
Discharge cutoff	2.5 V
Max continuous discharge	10A
Standard charge current	840 mA
Standard discharge current	240mA
Physical
Form factor	18650
Dimensions	18.1mm × 64.8mm
Weight	44.3 g
Top type	Flat Top
Protected	No
Wrap color	Red
Insulator ring	Brown
Performance
Capacity	1200 mAh
Energy	4.44 Wh
Specific energy	100.23 Wh/kg
Energy density	266.29 Wh/L
Power density (gravimetric)	835 W/kg
Power density (volumetric)	2,219 W/L
Operating Limits
Charge temp	0°C to 45°C
Discharge temp	-20°C to 60°C

At the standard 840 mA charge rate, a full charge takes about 1.4 hours. The last bit is a slow taper to top it off.

Voltage operating window

Cutoff
2.5VNominal
3.7VMax charge
4.2V

Usable range: 1.7V

C-rate conversion: Sanyo UR18650SA (1200mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.24 A	5h 00m
0.5C	0.6 A	2h 00m
1C	1.2 A	1h 00m
2C	2.4 A	30m
3C	3.6 A	20m
5C	6 A	12m
8C	9.6 A	7m 30s

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

Charging

Rate	Current	Estimated time
0.5C	600 mA	~2h 00m
Standard	840 mA	~1h 26m
1C	1,200 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 Sanyo UR18650SA datasheet (PDF) ↗

Pack scaling

Series voltage configurations

Config	Nominal V	Max V	Min V	Common use
1S	3.7V	4.2V	2.5V	Flashlights, single-cell devices
2S	7.4V	8.4V	5V	RC vehicles, 7.2V packs
3S	11.1V	12.6V	7.5V	Power tools (10.8V nominal)
4S	14.8V	16.8V	10V	Ebike (small), some power tools
7S	25.9V	29.4V	17.5V	Ebike (24V system)
10S	37V	42V	25V	Ebike (36V system)
13S	48.1V	54.6V	32.5V	Ebike (48V standard)
14S	51.8V	58.8V	35V	Ebike (52V high-power)
16S	59.2V	67.2V	40V	DIY powerwall

Parallel capacity scaling

Config	Capacity	Energy	Max discharge
1P	1,200 mAh	4.4 Wh	10 A
2P	2,400 mAh	8.9 Wh	20 A
3P	3,600 mAh	13.3 Wh	30 A
4P	4,800 mAh	17.8 Wh	40 A
5P	6,000 mAh	22.2 Wh	50 A
6P	7,200 mAh	26.6 Wh	60 A

Example pack configurations

7S2P

24V ebike / small pack

14 cells25.9V nominal2,400mAh62Wh20A maxCell weight: 0.62 kg (add ~15% for wiring and BMS)

13S4P

48V ebike standard

52 cells48.1V nominal4,800mAh231Wh40A maxCell weight: 2.3 kg (add ~15% for wiring and BMS)

16S4P

DIY powerwall

64 cells59.2V nominal4,800mAh284Wh40A maxCell weight: 2.84 kg (add ~15% for wiring and BMS)

4S6P

Power tool replacement

24 cells14.8V nominal7,200mAh107Wh60A maxCell weight: 1.06 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

Dimensions18.1mm × 64.8mm

TopFlat Top

Format18650

Similar cells

Same format and chemistry, within ±500mAh capacity:

Cell	mAh	CDR	Wh	Weight	Wh/kg
Sanyo UR18650SA (this cell)	1200	10A	4.44	44.3g	100.23
Sanyo UR18650P	1700	—	6.3	—	—
Panasonic CGR18650HM	1630	3.2A	6	—	—
LG LGDAHB21865	1500	30A	5.6	48g	117
Panasonic CGR18650H	1500	—	5.6	25g	222
Samsung INR18650-15R	1500	—	5.6	—	—

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 Sanyo UR18650SA?

What is the maximum discharge rate of the Sanyo UR18650SA?

How many UR18650SA cells do I need for a 48V ebike battery?

What does the Sanyo UR18650SA weigh?

Can I use the UR18650SA for vaping?

What temperature range can the UR18650SA operate in?

What size is the Sanyo UR18650SA?

Handling and safety

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

Never charge above 4.2V or discharge below 2.5V.
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.