Battery for Milwaukee M12 Heated Jacket
The TenHutt Lithium Ion Battery (48-11-2401) is an aftermarket two-pack made for the Milwaukee M12 12V platform, including M12 heated jackets. Each pack is advertised at 3.0Ah. Swapping a removable pack needs no tools.
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Will This Battery Work in a Milwaukee M12 Heated Jacket?
This TenHutt pack is listed for Milwaukee M12 tools and heated jackets. Milwaukee’s own manuals call for designated batteries. Run through these three points before you buy.
48-11-2401 is also the part number of Milwaukee’s genuine 1.5Ah REDLITHIUM CP1.5 pack. This TenHutt listing advertises 3.0Ah per pack. Fit in each jacket or holder has not been independently tested, and no Milwaukee approval for this pack was found.
TenHutt 48-11-2401 Specifications
| Property | Detail |
|---|---|
| Brand | TenHutt |
| Listed model | 48-11-2401 (ASIN B07PYZCF81) |
| Product type | Aftermarket replacement battery for Milwaukee M12 |
| Chemistry | Lithium-ion, rechargeable (as listed) |
| Platform voltage | 12V (M12). Some regional listings show 10.8V. Nominal voltage not verified |
| Advertised capacity | 3.0Ah (3,000mAh) per pack. Not independently measured |
| Set size | 2 battery packs |
| Listed contents | 2 batteries and a user manual. Charger and holder not listed |
| Single-pack size and weight | Not verified. Retailer listings show conflicting figures |
| Rated energy (Wh) | Not verified |
| Protection | Listing claims a BMS covering short circuit, overcharge, overdischarge, overvoltage and overheating. Not independently verified |
| Certification | Complete-pack UL certification not verified |
| Charging | Listing says the pack can be charged with your original charger and names Milwaukee charger 48-59-2401 as compatible. See the charger warning below |
| Waterproof rating | Not verified |
| Warranty | Varies by retailer: one listing says 1.5-year refund or replacement, another says 12 months. Confirm the written terms when you buy |
Values come from the product listing and Milwaukee documentation. Rows marked “Not verified” had no reliable source. Do not assume Milwaukee’s genuine battery ratings apply to this pack.
M12 Heated Jacket Battery Replacement Difficulty
Swapping a removable pack is easy. It needs no tools, no soldering and no case opening. The harder part is choosing a pack and charger setup that suits your jacket. Problems like a pack that will not latch, a damaged holder or a missing holder add effort. Tap a slice to highlight it.
- 15% Releasing the old pack
- 15% Inserting the new pack
- 45% Choosing a compatible battery and charger
- 25% Checking fit and latch
The difficulty score and effort split are an editorial estimate based on Milwaukee’s documented pack-release process. They are not an official rating.
How to Replace Your Heated Jacket Battery
These steps follow Milwaukee’s manual for the 204 and 224 series jackets. Other generations can differ. Tap each step to tick it off as you go.
- 1Turn the jacket offHold the power button for about two seconds until the LEDs turn off.
- 2Release the old batteryOpen the battery pocket, press the release buttons and pull the pack out of the battery holder.
- 3Insert the new batterySlide the new pack into the holder until it latches securely. Do not force a pack that will not seat.
- 4Reconnect and testCheck the jacket cable is plugged into the holder port, place the holder back in its pocket without pinching the cord, then turn the jacket on.
Check the connections, charge the pack and clean the battery contacts. If the jacket still fails, Milwaukee’s manual says to return the jacket, charger and battery to a Milwaukee service facility. Never open the battery or the jacket.
Other Devices on the Milwaukee M12 Platform
The listing says this pack fits M12 tools. These are Milwaukee M12 devices, and fit in each one has not been independently tested. Some older models are discontinued, so confirm compatibility and availability before you buy.
- Heated jacketsSeries 204, 224, 2334, 2337, 2346
- Heated hoodiesSeries 302
- Heated vestsMilwaukee M12 vests
- Hand warmersM12 hand warmer (2321-20)
- Drill/driversM12 3/8 in. class
- Hammer drill/driversM12 3/8 in. class
- M12 FUEL hammer drill3404-20
- M12 FUEL impact driver3453-20
- Impact wrenchesM12 3/8 in. square drive
- Caulk gunsM12 10 oz. adhesive gun
- Grease gunsM12 grease gun
- Drain snakesM12 drain snake
- No-hub driversM12 no-hub driver
Safety, Charging & Disposal
The TenHutt listing says the pack can be charged with your original charger and names Milwaukee charger 48-59-2401 as compatible. That charger’s manual says to charge only Milwaukee 12V Li-ion batteries and not to use aftermarket batteries. Get the supported charger confirmed in writing before you charge this pack.
- Never open, crush, soak or short-circuit the pack.
- Remove the pack and the holder before you wash the jacket.
- Wash as your jacket manual says: older models (2334, 2337, 2346) need hand washing and hang drying, while the 204 and 224 series allow a gentle machine cycle.
- Cover the terminals with electrical tape, then use a battery collection point. Even a drained pack holds some energy.
TenHutt 48-11-2401 Battery: FAQ
What is the TenHutt 48-11-2401 battery used for?
It is an aftermarket battery two-pack listed for Milwaukee M12 12V tools and M12 heated jackets. Fit and performance in each device are not independently verified.
Is it a genuine Milwaukee battery?
No. It is a TenHutt product. Milwaukee uses 48-11-2401 for its own 1.5Ah REDLITHIUM CP1.5 pack, while this TenHutt listing advertises 3.0Ah per pack.
Does the battery plug straight into the jacket?
No. In Milwaukee’s documented setup, the pack slides into a battery holder and the jacket cable plugs into that holder.
How long will it run my heated jacket?
No tested runtime for this pack was found. Milwaukee’s up-to-12-hour low-setting figure for its 224-21 jacket applies to a genuine M12 REDLITHIUM 3.0 pack with the core zone only.
Can I charge it with a Milwaukee charger?
Milwaukee’s 48-59-2401 charger manual says to charge only Milwaukee 12V Li-ion batteries and not to use aftermarket batteries. The TenHutt listing says the pack can be charged with your original charger and names 48-59-2401 as compatible.
Does the set include a charger or jacket battery holder?
The listing shows two batteries and a user manual. A charger and holder are not listed. Check the contents of the offer you buy.
Is the battery waterproof?
No waterproof rating was found. Keep it dry and remove it from the jacket before washing.
Will using it void my jacket warranty?
Milwaukee’s jacket manual excludes damage from misuse and alterations and points to designated batteries. Whether a claim is covered depends on the warranty terms and the case. Contact Milwaukee to confirm.
Can I wash the jacket with the battery inside?
No. Remove the pack and holder first. Older Milwaukee models (2334, 2337 and 2346 series) need hand washing and hang drying, while the 204 and 224 series allow a gentle machine cycle. Follow your jacket’s care label.
