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I’m Mena, and this roundup is specifically for people who already own a fan-cooled jacket or vest and just need to replace the fan or battery — not buy a whole new set. If you’re still deciding which fan-cooled workwear to buy in the first place, I’ve got you covered in two other places: a full lineup comparison in Fan-Cooled Workwear Comparison: 10 Jackets, Vests & Battery Kits, and a commuting-focused review in Is It Good for Bike Commuting? Reviewing BURTLE Fan-Cooled Workwear. This article is different: it’s about replacing worn-out parts on gear you already own.
The short version: fan and battery compatibility almost never crosses brands. Before buying anything, confirm the brand and generation of the jacket or vest you already own, and match parts to that exact system.
Quick Answer: Which Part Do You Need?
Cross-brand compatibility is essentially nonexistent, so start by identifying your existing jacket’s brand. If you’re replacing just the fan or just the battery within the same brand, buy the individual part. If you’re replacing both at once, a full battery+fan set is usually the better value.
| Product | Compatible with | Airflow/Output | Best for |
|---|---|---|---|
| Makita A-72132 Fan Unit Set | Makita fan jackets only | Up to 2.7 m³/min | Makita owners replacing just the fan |
| Makita BL1055B Slim Battery | Makita fan jackets only | 4-speed / up to ~40.5 hrs | Makita owners replacing just the battery |
| Makita Belt Clip and Screw Kit | Makita fan jacket batteries + most 18V LXT tools | N/A | Anyone whose battery belt clip broke or went missing |
| Cooling Vest Battery Pouch | Universal (check size fit) | N/A | Anyone needing a way to carry/secure a battery pack |
4 Replacement Parts and Accessories Compared
1. Makita A-72132 Replacement Fan Unit Set
MenaBrushless motors, up to 2.7 m³/min airflow, and compatibility across 18 different jacket models — that broad compatibility is very on-brand for Makita.
| Brand | Makita |
| Motor | Brushless |
| Airflow | Up to 2.7 m³/min on high |
| Runtime | Up to ~10 hrs with a BL1860B battery |
| Compatibility | ~18 Makita fan jacket/vest models |
This is Makita’s updated fan unit set for their cordless fan jackets and vests, using brushless motors for up to 2.7 m³/min of airflow on the highest setting and roughly 10 hours of runtime when paired with a BL1860B battery. It’s compatible across roughly 18 different Makita models, including the FV213D, FV214D, and FJ219D lines — genuinely broad coverage for a single replacement part.
One compatibility note: Makita’s fan housing is shaped somewhat differently from other brands, so it can fail to seat properly or lock the retaining ring on non-Makita jackets. Only use this on a Makita-branded jacket or a model confirmed compatible by Makita.
This is the part to reach for when your Makita fan jacket’s fan has weakened but the jacket itself is still in good shape.
2. Makita BL1055B (A-72126) Slim Battery for Fan Jacket
MenaThe slim profile tucks into a jacket pocket easily, and being able to charge USB devices off it is a small but genuinely useful extra.
| Brand | Makita |
| Capacity | 16.75Ah |
| Speed settings | 4-speed |
| Runtime | ~6.5 to 40.5 hrs depending on mode |
| Extra feature | Built-in USB charging port |
The BL1055B is a slim battery shared across Makita’s cordless fan jacket and heated-clothing lines. It supports 4 fan speed settings with runtime ranging from roughly 6.5 hours on high to 40.5 hours on the lowest setting, and it can charge USB devices while in use — a nice bonus for keeping a phone topped off on a long shift.
As a standalone battery, the price is significant enough that it makes the most sense when the jacket and fan are still in good working order and only the battery has degraded. Compare the cost against a full new set before committing, since a full set can sometimes be a better value depending on current pricing.
This is the part to reach for if you want a spare battery to swap between shifts, or if your existing battery just isn’t holding a charge like it used to.
3. Makita Belt Clip and Screw Kit (251314-2 / 346449-3)
MenaA small, cheap fix for a big annoyance — the stock belt clip on a fan jacket battery is often the first thing to crack or go missing.
| Brand | Makita (OEM) |
| Includes | Belt clip + mounting screw |
| Compatibility | Most Makita fan jacket batteries and 50+ Makita cordless tools |
| Purpose | Replace a lost or broken factory belt clip |
This OEM Makita belt clip and screw kit is the exact factory replacement for the clip that comes on Makita fan jacket batteries and most of their 18V LXT tool batteries. It’s an inexpensive fix when the original clip cracks or snaps off, which happens more often than you’d expect from repeated clipping on and off a belt.
Because it’s the genuine OEM part, fitment is exact — no filing, no forcing. It works across Makita’s battery lineup, so one kit can cover spares if you keep a couple of batteries in rotation.
This is the fix to reach for if your Makita fan jacket battery’s belt clip has snapped or gone missing — a five-minute repair instead of buying a whole new battery.
4. Cooling Vest Battery Pouch with Carabiner Clip
MenaClipping the battery to your belt with a carabiner means you’re not worrying about the cable getting caught on something all day. Small detail, genuinely useful.
| Type | Universal battery carry pouch |
| Attachment | Carabiner clip + belt loop |
| Best for | Jackets without a battery pocket, or batteries without a built-in holster |
This carabiner-equipped pouch holds a fan jacket battery securely while letting the power cable run out safely, and it can also clip directly to a belt loop. It’s particularly useful for jackets that don’t have a dedicated battery pocket, or for battery packs that don’t come with their own holster.
As a universal-fit pouch, it may not perfectly fit larger full-size batteries like the BURTLE AC10 set — check your battery’s dimensions against the pouch before buying.
Fan Jacket Battery & Fan Basics
Fan-cooled jackets work by drawing outside air in through a fan mounted on the garment, using the evaporation of sweat to cool you down. Fans and batteries are both wear items with a lifespan of a few years depending on how often they’re used — if the jacket shell itself is still in good shape, replacing just the worn part is usually the smarter move.
Cross-Brand Compatibility Is Essentially Nonexistent
Makita and Sun-S each use different fan shapes and battery connectors, so parts generally aren’t interchangeable between brands. Even within the same brand, generations can differ — Sun-S, for example, changed its fan/battery interface between pre-2020 and 2020-onward models. A handful of aftermarket adapters exist, but full compatibility isn’t guaranteed, so match parts to your exact brand and generation.
Deciding Between Fan-Only and Battery-Only Replacement
If airflow has clearly dropped or you’re hearing unusual noise, replace the fan. If runtime on a full charge has gotten noticeably shorter, replace the battery. If both are near the end of their life at the same time, a full fan+battery set is often more cost-effective than buying both parts separately.
Tips for Buying and Using Replacement Parts
Before buying, confirm your existing jacket’s exact model number and check the manufacturer’s official compatibility chart. Makita in particular covers a lot of models but varies in retaining-ring shape between them, so don’t rely on model-number matching alone — confirm actual fit where possible.
Store batteries away from heat and humidity, and if you’re storing gear for the off-season, leave the battery at roughly 50% charge rather than fully charged — a fully charged battery left in storage over winter is a common way to lose capacity by the next season.
Frequently Asked Questions
Q. Can I mix a fan from one brand with a battery from another?
A. Generally, no. Connector shapes and voltages differ between brands, and using an adapter cable can cause malfunctions or damage even if it physically connects. Stick to parts from the same brand and generation as your existing jacket.
Q. If I’m not sure whether to replace the fan or the battery first, which should I prioritize?
A. If airflow has dropped or you’re hearing unusual noise, prioritize the fan. If runtime has gotten noticeably shorter, prioritize the battery. If both are near end-of-life, a full set is often the better value overall.
Q. I haven’t bought a fan-cooled jacket yet — which set should I get?
A. This article is specifically about replacement parts. For a full brand-by-brand comparison of complete jacket, vest, and battery sets, see Fan-Cooled Workwear Comparison: 10 Jackets, Vests & Battery Kits.
Summary
We compared four replacement parts and accessories for fan-cooled workwear across compatibility and use case. For single-part replacement on a Makita jacket, the fan unit or slim battery fit the bill; for a quick fix or general carry, the belt clip kit and universal battery pouch round out the lineup.
Since cross-brand compatibility is essentially nonexistent, always confirm your existing jacket’s brand and generation before buying a replacement part.