Battery Building ToolsCell Database Hohm Run XL

✱ Render

21.5 × 71.4 mm

21700NMC Mooch-tested · 30 A

Hohm Tech Hohm Run XL

Name: Hohm Tech Hohm Run XL Lithium Battery Cell
Brand: Hohm Tech

Hohm Tech · released 2019

Capacity4007 mAh14.43 Wh

Mooch continuous30 ASize to this figure

Resistance12.9 mΩDC internal resistance

Voltage window3.6 V2.5 – 4.2 V

Standard charge6010 mA~0.7 h to full

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

At 4007 mAh, this ranks #48 of 72 21700 cells in our database. On the lower end for capacity among 21700 cells. A mid-range 21700 cell. Solid for builds that don't need extreme capacity or discharge.

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Full specifications

Electrical
Chemistry	NMC
Nominal voltage	3.6 V
Max charge voltage	4.2 V
Discharge cutoff	2.5 V
Max continuous discharge	30A (Mooch-tested)
Mooch CDR (trusted)	30 A
Standard charge current	6010 mA
Internal resistance	12.9 mΩ
Physical
Form factor	21700
Dimensions	21.5mm × 71.4mm
Top type	Flat Top
Protected	No
Performance
Capacity	4007 mAh
Energy	14.43 Wh
Energy density	556.67 Wh/L
Power density (volumetric)	4,166 W/L
Cycle life	500 cycles
Year released	2019

Independent test data: Mooch's test of the Hohm Run XL ↗

At the standard 6010 mA charge rate, a full charge takes about 0.7 hours. The last bit is a slow taper to top it off.

Voltage operating window

Cutoff
2.5VNominal
3.6VMax charge
4.2V

Usable range: 1.7V

C-rate conversion: Hohm Tech Hohm Run XL (4007mAh)

C-Rate	Current (A)	Theoretical runtime
0.2C	0.8 A	5h 00m
0.5C	2 A	2h 00m
1C	4.01 A	1h 00m
2C	8.01 A	30m
3C	12.02 A	20m
5C	20.03 A	12m

Highlighted row is closest to the rated 30A continuous discharge.

Charging

Rate	Current	Estimated time
0.5C	2,004 mA	~2h 00m
1C	4,007 mA	~1h 00m
Standard	6,010 mA	~0h 40m

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 Hohm Tech Hohm Run XL datasheet (PDF) ↗

Pack scaling

Series voltage configurations

Config	Nominal V	Max V	Min V	Common use
1S	3.6V	4.2V	2.5V	Flashlights, single-cell devices
2S	7.2V	8.4V	5V	RC vehicles, 7.2V packs
3S	10.8V	12.6V	7.5V	Power tools (10.8V nominal)
4S	14.4V	16.8V	10V	Ebike (small), some power tools
7S	25.2V	29.4V	17.5V	Ebike (24V system)
10S	36V	42V	25V	Ebike (36V system)
13S	46.8V	54.6V	32.5V	Ebike (48V standard)
14S	50.4V	58.8V	35V	Ebike (52V high-power)
16S	57.6V	67.2V	40V	DIY powerwall

Parallel capacity scaling

Config	Capacity	Energy	Max discharge
1P	4,007 mAh	14.4 Wh	30 A
2P	8,014 mAh	28.9 Wh	60 A
3P	12,021 mAh	43.3 Wh	90 A
4P	16,028 mAh	57.7 Wh	120 A
5P	20,035 mAh	72.1 Wh	150 A
6P	24,042 mAh	86.6 Wh	180 A

Example pack configurations

7S2P

24V ebike / small pack

14 cells25.2V nominal8,014mAh202Wh60A max

13S4P

48V ebike standard

52 cells46.8V nominal16,028mAh750Wh120A max

16S4P

DIY powerwall

64 cells57.6V nominal16,028mAh923Wh120A max

4S6P

Power tool replacement

24 cells14.4V nominal24,042mAh346Wh180A max

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.

FlashlightsHigh capacity means long runtime. Great for everyday carry and extended use.

Power ToolsSufficient discharge and capacity for most power tool packs.

Physical dimensions

Dimensions21.5mm × 71.4mm

TopFlat Top

Format21700

Similar cells

Same format and chemistry, within ±500mAh capacity:

Cell	mAh	CDR	Wh	Weight	Wh/kg
Hohm Tech Hohm Run XL (this cell)	4007	30A	14.43	—	—
BAK 45D	4500	30A	16.2	69g	235
Dmegc 45E	4500	13A	16.2	70g	231
Epoch P45B	4500	45A	16.2	70g	231
Molicel P45B	4500	45A	16.2	70g	231
Samsung INR21700-45T	4500	35A	16.2	72g	225

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 Hohm Tech Hohm Run XL?

What is the maximum discharge rate of the Hohm Tech Hohm Run XL?

How many Hohm Run XL cells do I need for a 48V ebike battery?

Can I use the Hohm Run XL for vaping?

What is the cycle life of the Hohm Tech Hohm Run XL?

What size is the Hohm Tech Hohm Run XL?

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.