Battery Building ToolsCell Database LiFePO4

✱ Render

26.6 × 65.1 mm · 90 g

26650LFP Mooch-tested · 55 A

Vapcell LiFePO4

Name: Vapcell LiFePO4 Lithium Battery Cell
Brand: Vapcell

Vapcell · released 2019

Capacity2600 mAh8.32 Wh · 92.44 Wh/kg

Mooch continuous55 ASize to this figure

Resistance5 mΩDC internal resistance

Voltage window3.2 V2 – 3.6 V

Standard charge2500 mA~1 h to full

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

At 2600 mAh, this ranks #14 of 15 26650 cells in our database. On the lower end for capacity among 26650 cells. Higher discharge than 93% 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	3.6 V
Discharge cutoff	2 V
Max continuous discharge	55A (Mooch-tested)
Mooch CDR (trusted)	55 A
Standard charge current	2500 mA
Standard discharge current	520mA
Internal resistance	5 mΩ
Physical
Form factor	26650
Dimensions	26.6mm × 65.1mm
Weight	90 g
Top type	Flat Top
Protected	No
Wrap color	Red
Performance
Capacity	2600 mAh
Energy	8.32 Wh
Specific energy	92.44 Wh/kg
Energy density	229.98 Wh/L
Power density (gravimetric)	1,956 W/kg
Power density (volumetric)	4,865 W/L
Year released	2019

Independent test data: Mooch's test of the LiFePO4 ↗

At the standard 2500 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: Vapcell LiFePO4 (2600mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.52 A	5h 00m
0.5C	1.3 A	2h 00m
1C	2.6 A	1h 00m
2C	5.2 A	30m
3C	7.8 A	20m
5C	13 A	12m
8C	20.8 A	7m 30s
10C	26 A	6m
15C	39 A	4m
20C	52 A	3m

Highlighted row is closest to the rated 55A continuous discharge.

Charging

Rate	Current	Estimated time
0.5C	1,300 mA	~2h 00m
Standard	2,500 mA	~1h 02m
1C	2,600 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	14.4V	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	2,600 mAh	8.3 Wh	55 A
2P	5,200 mAh	16.6 Wh	110 A
3P	7,800 mAh	25 Wh	165 A
4P	10,400 mAh	33.3 Wh	220 A
5P	13,000 mAh	41.6 Wh	275 A
6P	15,600 mAh	49.9 Wh	330 A

Example pack configurations

4S1P

12V system

4 cells12.8V nominal2,600mAh33Wh55A maxCell weight: 0.36 kg (add ~15% for wiring and BMS)

4S2P

12V with more capacity

8 cells12.8V nominal5,200mAh67Wh110A maxCell weight: 0.72 kg (add ~15% for wiring and BMS)

8S1P

24V system

8 cells25.6V nominal2,600mAh67Wh55A maxCell weight: 0.72 kg (add ~15% for wiring and BMS)

16S1P

Powerwall / 48V ebike

16 cells51.2V nominal2,600mAh133Wh55A maxCell weight: 1.44 kg (add ~15% for wiring and BMS)

Design a custom pack with this cell:

Pack Planner →Pack Designer →

Application suitability

PowerwallsHigh capacity means more stored energy per cell. Fewer cells needed for a given kWh target.

Ebike PacksGood balance of capacity for range and discharge for hills. Works well in most ebike packs.

Car AudioEnough discharge to handle amplifier bursts without voltage sag.

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

FlashlightsDecent runtime. Works well for most flashlights.

Power ToolsSufficient discharge and capacity for most power tool packs.

Physical dimensions

Dimensions26.6mm × 65.1mm

TopFlat Top

Format26650

Similar cells

Same format and chemistry, within ±500mAh capacity:

Cell	mAh	CDR	Wh	Weight	Wh/kg
Vapcell LiFePO4 (this cell)	2600	55A	8.32	90g	92.44
Enercig EC-IFR20C	2300	46A	7.4	—	—

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 Vapcell LiFePO4?

What is the maximum discharge rate of the Vapcell LiFePO4?

What does the Vapcell LiFePO4 weigh?

Can I use the LiFePO4 for vaping?

What size is the Vapcell LiFePO4?

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.