Battery Building ToolsCell Database EC-IFR20C

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26650LFP Mooch-tested · 46 A

Enercig EC-IFR20C

Name: Enercig EC-IFR20C Lithium Battery Cell
Brand: Enercig

Enercig

Capacity2300 mAh7.36 Wh

Mooch continuous46 ASize to this figure

Resistance13.2 mΩDC internal resistance

Voltage window3.2 V2.5 – 3.65 V

Standard charge2000 mA~1.2 h to full

Build a pack with this cell →Download spec sheet (PDF)Mooch's test ↗

At 2300 mAh, this ranks #15 of 15 26650 cells in our database. On the lower end for capacity among 26650 cells. Higher discharge than 87% of 26650 cells in our database. Great for high-drain builds.

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Full specifications

Electrical
Chemistry	LFP
Nominal voltage	3.2 V
Max charge voltage	3.65 V
Discharge cutoff	2.5 V
Max continuous discharge	46A (Mooch-tested)
Mooch CDR (trusted)	46 A
Standard charge current	2000 mA
Internal resistance	13.2 mΩ
Physical
Form factor	26650
Top type	Flat Top
Protected	No
Performance
Capacity	2300 mAh
Energy	7.36 Wh

Independent test data: Mooch's test of the EC-IFR20C ↗

At the standard 2000 mA charge rate, a full charge takes about 1.2 hours. The last bit is a slow taper to top it off.

Voltage operating window

Cutoff
2.5VNominal
3.2VMax charge
3.65V

Usable range: 1.1V

C-rate conversion: Enercig EC-IFR20C (2300mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.46 A	5h 00m
0.5C	1.15 A	2h 00m
1C	2.3 A	1h 00m
2C	4.6 A	30m
3C	6.9 A	20m
5C	11.5 A	12m
8C	18.4 A	7m 30s
10C	23 A	6m
15C	34.5 A	4m
20C	46 A	3m

Highlighted row is closest to the rated 46A continuous discharge.

Charging

Rate	Current	Estimated time
0.5C	1,150 mA	~2h 00m
Standard	2,000 mA	~1h 09m
1C	2,300 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.

Pack scaling

Series voltage configurations

Config	Nominal V	Max V	Min V	Common use
4S	12.8V	14.6V	10V	12V system (LiFePO4)
8S	25.6V	29.2V	20V	24V system
12S	38.4V	43.8V	30V	36V system
16S	51.2V	58.4V	40V	48V powerwall / ebike

Parallel capacity scaling

Config	Capacity	Energy	Max discharge
1P	2,300 mAh	7.4 Wh	46 A
2P	4,600 mAh	14.7 Wh	92 A
3P	6,900 mAh	22.1 Wh	138 A
4P	9,200 mAh	29.4 Wh	184 A
5P	11,500 mAh	36.8 Wh	230 A
6P	13,800 mAh	44.2 Wh	276 A

Example pack configurations

4S1P

12V system

4 cells12.8V nominal2,300mAh29Wh46A max

4S2P

12V with more capacity

8 cells12.8V nominal4,600mAh59Wh92A max

8S1P

24V system

8 cells25.6V nominal2,300mAh59Wh46A max

16S1P

Powerwall / 48V ebike

16 cells51.2V nominal2,300mAh118Wh46A max

Design a custom pack with this cell:

Pack Planner →Pack Designer →

Application suitability

PowerwallsUsable for powerwalls but lower capacity means you'll need more cells to hit your target kWh.

Ebike PacksMarginal. Check your motor's peak draw first. You might get voltage sag under load.

Car AudioEnough discharge to handle amplifier bursts without voltage sag.

High-Drain VapingAbove the 25A Mooch CDR threshold. Suitable for regulated and mechanical mods.

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

Power ToolsSufficient discharge and capacity for most power tool packs.

Similar cells

Same format and chemistry, within ±500mAh capacity:

Cell	mAh	CDR	Wh	Weight	Wh/kg
Enercig EC-IFR20C (this cell)	2300	46A	7.36	—	—
Vapcell LiFePO4	2600	55A	8.3	90g	92

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 Enercig EC-IFR20C?

What is the maximum discharge rate of the Enercig EC-IFR20C?

Can I use the EC-IFR20C for vaping?

Handling and safety

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

Never charge above 3.65V 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.