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The IDEAL 4A 20V Li-Ion Battery (IDM BT-4A) is a high-capacity Makita-type compatible power tool battery engineered for professionals who demand extended runtime and consistent power delivery. Rated at 4000mAh / 24Wh, this 20V lithium-ion battery eliminates power interruptions during heavy-duty tasks. Its compact, lightweight design reduces operator fatigue, while double insulation and CE-certified construction ensure safe, reliable operation across a wide range of cordless power tools.
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The IDEAL IDM BT-4A is designed as an M-Type (Makita-Type) compatible battery, meaning it is engineered to fit the same battery slot used by Makita-style 20V cordless power tools. It functions as a direct drop-in replacement, allowing you to use it with your existing compatible tools without any modifications. We recommend verifying your tool's voltage rating (20V) and battery slot type before purchase to ensure full compatibility.
The key difference is runtime. A 4000mAh (4Ah) battery like the IDM BT-4A provides approximately twice the runtime of a standard 2Ah battery under the same load conditions. This means fewer interruptions to recharge, which is especially valuable during heavy-duty or continuous-use applications such as drilling, cutting, or fastening over extended periods. If you frequently work on large projects or in locations where recharging is inconvenient, the 4Ah capacity is a worthwhile investment in productivity.
Yes. The IDEAL IDM BT-4A carries CE certification, verified through machine testing, confirming it meets the safety and electromagnetic compatibility standards required for the European market and internationally recognised safety benchmarks. Additionally, the battery features a double insulation design that physically isolates all internal electrical components from the outer casing, eliminating the risk of accidental electrical contact during normal use.
The IDM BT-4A is designed to be charged using a compatible M-Type (Makita-Type) charger that operates on a 220–240V / 50–60Hz power supply — the standard mains voltage used across the UAE and most of the world. This makes it fully compatible with standard wall outlets in the region. A compatible charger is sold separately; please ensure you use a charger rated for 20V Li-Ion batteries to maintain battery health and safety.
Lithium-Ion batteries like the IDM BT-4A do not suffer from the "memory effect" associated with older NiCd batteries, meaning partial charges do not reduce long-term capacity. However, as a best practice, it is recommended to use a compatible smart charger that automatically stops charging once the battery reaches full capacity. Consistently overcharging any Li-Ion battery using an unregulated charger can reduce its overall lifespan over time. Always refer to the included Guide Book for specific charging recommendations.
Runtime depends on the tool being used and the intensity of the application. With a 4000mAh / 24Wh capacity, the IDM BT-4A is rated for heavy-duty, high-demand use. As a general guide, a high-draw tool such as a circular saw will consume more power per minute than a drill used for light fastening. The battery's stable 20V lithium-ion output ensures consistent performance throughout the discharge cycle, so you will not experience a drop in tool power as the battery depletes — right up until it needs recharging.
Yes. The IDEAL IDM BT-4A is specifically designed as a high-capacity replacement battery for worn-out or degraded M-Type (Makita-Type) 20V batteries. In many cases, replacing an old battery with the IDM BT-4A will actually improve your tool's runtime, since the original battery may have been a lower 2Ah or 3Ah model. Simply ensure your tool uses a 20V M-Type battery slot, and the IDM BT-4A will slot in as a direct replacement.
Rapid power loss mid-task is one of the most common signs of an underpowered or degraded battery. If your current battery is a lower capacity (1.5Ah or 2Ah) or has aged significantly, it will struggle to sustain output under heavy loads. Upgrading to the IDM BT-4A's 4000mAh capacity provides a substantially larger energy reserve, which means your tool maintains full, consistent power output for longer — reducing the frustrating experience of tools slowing down or cutting out before the job is done.
The IDM BT-4A is built with heavy-duty, site-ready construction in mind. Its double insulation design ensures that internal electrical components are fully protected from the outer casing, reducing vulnerability to environmental factors. The battery's CE-certified build quality and use of high-quality lithium-ion cells mean it is engineered to withstand the rigours of frequent, professional use. For best results in extreme conditions, store the battery in a cool, dry place when not in use and avoid exposing it to direct water ingress.
Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
US$40
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