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Description
Makita 18V LXT Lithium‑Ion 4.0Ah Battery and Rapid Optimum Charger Starter Pack (BL1840BDC2)18V LXT 4. 0Ah Battery + Rapid Optimum Charger Kit Build your Makita cordless system with this 18V LXT starter pack featuring two 4. 0Ah lithiumion batteries and the Rapid Optimum Charger. The charger actively monitors current, voltage, and temperature for faster, cooler charging, while the batteries include Star Protection and an LED charge level indicator for reliable runtime on any LXT tool. Key Features: Fast Charging: Charges a 4. 0Ah 18V LXT
18V LXT 4.0Ah Battery + Rapid Optimum Charger Kit
Build your Makita cordless system with this 18V LXT starter pack featuring two 4.0Ah lithium‑ion batteries and the Rapid Optimum Charger. The charger actively monitors current, voltage, and temperature for faster, cooler charging, while the batteries include Star Protection and an LED charge-level indicator for reliable runtime on any LXT tool.
Key Features:
- Fast Charging: Charges a 4.0Ah 18V LXT battery in about 40 minutes with built‑in cooling fan.
- Smart Battery Care: Charger communicates with the battery to control current, voltage, and temperature for longer life.
- Star Protection: Computer Controls safeguard against overloading, over‑discharging, and overheating.
- Ready When Needed: Lithium‑ion cells resist self‑discharge; integrated LED gauge shows remaining charge.
- System Compatibility: Works with Makita 18V LXT tools featuring Star Symbol or yellow battery receiver.
Specifications Table:
| Specification | Details |
|---|---|
| Battery Power Type | Lithium Ion |
| Battery Voltage | 18V |
| Battery Capacity | 4.0Ah (each) |
| Number of Batteries Included | 2 |
| Charger Included | Yes (Rapid Optimum Charger DC18RC) |
| Charge Time | Approximately 40 minutes for 4.0Ah |
| Color Family | Teal/Black |
| Rechargeable | Yes |
| Power Tool Accessory Type | Battery and Charger Set |
| Compatibility | Makita 18V LXT tools with Star Protection (Star Symbol and/or Yellow Battery Receiver) |
| Features | Star Protection Computer Controls; LED charge level indicator; Built‑in cooling fan |
| Individual Battery Weight | Approx. 1.4–1.5 lb |
| Operating Temperature Performance | Delivers consistent power in extreme temperatures (down to −4°F / −20°C) |
Frequently Asked Questions (FAQ):
Q: How long does it take to charge a 4.0Ah battery?
A: Approximately 40 minutes on the included Rapid Optimum Charger.
Q: Are these batteries compatible with all Makita 18V tools?
A: They are compatible with Makita 18V LXT tools that feature Star Protection (Star Symbol and/or yellow battery receiver).
Q: Do the batteries have a charge indicator?
A: Yes, each battery has an integrated LED charge level indicator.
Q: Can the charger manage battery temperature during charging?
A: Yes, it actively monitors temperature and uses a built‑in fan to cool the battery for faster charging.
Q: How many batteries are included?
A: Two 4.0Ah 18V LXT batteries are included along with the charger.
Power, Poise, and Portable Precision
This Makita LXT starter pack streamlines your workshop with a chic, performance‑driven duo—sleek black batteries and a teal charger that feels downright architectural. I love the LED fuel gauge; it’s a subtle jewel that keeps your projects on tempo. Style it in a matte utility caddy beside your bench for a composed, ready‑for‑anything vignette. For anyone crafting a refined yet hardworking space, this kit is an effortless essential.
Power your Makita LXT tools with faster charging and dependable runtime—add this starter pack to your cart today.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Work fantastic
Size: 100 Count (Pack of 1)
I have a terrible immune system and work in a hospital. I use to stay sick constantly until I started taking these and now I rarely get sick!
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Reviewed in the United States on March 28, 2026
★★★★★ 5
A Boost to My Health
Size: 100 Count (Pack of 1)
I’ve been using this elderberry supplement for a few weeks now, and I’m already seeing amazing results! It’s a natural powerhouse that’s helped boost my immune system and keep me feeling strong and energized. The capsules are easy to take and have no aftertaste, which is always a bonus.
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Reviewed in the United States on March 24, 2025
★★★★★ 5
Re: potentially toxic substances
Flavor Name: Unflavored, Size: 8 Ounce (Pack of 1)
For those worried about the presence of potentially harmful substances such as Mercury, Lead, Aluminum, Fluoride, and Arsenic please do your research before panicking. This product is natural and all substances in it are naturally occurring. To find a product without the certain substances most likely means you are getting a more processed and synthetic product. Please read below an email I received from Dr. Darrin Starkey re: why those substances are in ConcenTrace mineral drops.
"Trace Minerals Research regularly tests for the presence of heavy metals, using Environmental Protection Agency (EPA) testing methods in addition to other standard testing methods. Test results consistently show that the amounts of these elements are well below safety tolerance levels established for food and drug manufacturing. In fact, recent test results released by an independent laboratory, using U.S. EPA approved testing methodologies, affirm that Trace Minerals Research’s mineral products do not contain levels that even approach the EPA’s reference dose for these elements. The recent findings should assure you, as well as our consumers everywhere, that Trace Minerals Research’s products are safe and do not pose any threat of heavy metal toxicity. The product is GRAS affirmed. If you are not familiar with GRAS affirmation, I would recommend educating yourself on it.
Our trace minerals are harvested (not manufactured) from the Great Salt Lake, and if you look at the landscape of the Great Salt Lake, you realize very quickly that it is surrounded by mountains. These mountains have various streams and rivers, that naturally runoff into the Great Salt Lake, and with no outlets, the lake becomes a sort of catch basin. As the snowpack melts in the spring, and this runoff makes it's way down the mountains, it picks up minerals from the rocks and soil that then accumulate in the Great Salt Lake.
Information that was put together by the Utah Geological Society on the Great Salt Lake actually clarifies how the lake is able to self clean without any outlets. It is important, and interesting, to note this information because while the lake has been concentrating inorganic salts in its waters for thousands of years, the total soluble concentrations of heavy metals are actually low. The information the Utah Geological Society put together states that the heavy metals, including clays, are enabled within the sediments and brines due to anaerobic conditions that then immobilize the metals.
At Trace Minerals Research, we take great pride in the quality and purity of our products. Our mineral brines are harvested from our private ponds on the Northwest side of the lake. Once the trace minerals are harvested, each lot of mineral brines undergoes extensive testing by both "in-house" and independent laboratories (as I have already mentioned), to test for impurities and to ensure potency, purity, and balance. Careful handling is a part of our harvesting process which is similar to that of an agricultural operation, and, just as in organic farming, great care is taken to avoid contamination by chemicals.
You specifically mentioned a concern about Lead, Mercury, Fluoride, Arsenic, and Aluminum. Again, this is question/concern many people have, and so it is important to understand how trace minerals work to understand why we have trace amounts of these elements in the product. First off, toxicity often occurs when a single element is introduced out of balance with other trace minerals. Man-made by-products are, all too often, the culprits of this because they are found in much higher doses than nature would have them. For instance, mercury contamination of our oceans has created a situation where the fish we consume from the very oceans we have contaminated contain much higher mercury levels than nature would normally have them contain. Most forms of life are not very good at expelling mercury so they tend to accumulate and concentrate mercury that they consume. If plankton consumes sea water over its life, it will tend to accumulate any mercury from the sea water and, thus, the mercury in the plankton will typically be higher than levels that are found in the sea water. When a fish eats the plankton over its life, it tends to accumulate mercury from the plankton and, thus, the fish will typically have higher levels of mercury than the plankton. As this paradigm continues upwards through the food chain, mercury levels tend to increase. The balance of trace minerals has been disrupted, and and as a result, there is now concern over human consumption of fish and the risk of mercury contamination.
The amount of Mercury found in 40 drops (1/2 teaspoon) of ConcenTrace is 0.008 parts per million (ppm). To put this into perspective, in a baked potato or a lean grilled chicken breast you get 0.4 ppms, and in a strawberry, you get 0.6 ppms of Mercury.
Arsenic is another perfect example of a man-made byproduct that has been linked to toxicity and as a result, most information about arsenic is focused around this concern. But, did you know that some of the richest sources of arsenic in our diets are found in our seeded berries such as strawberries. Most people wouldn't think twice about popping a strawberry in their mouth, and shouldn't, but that is also the amount of arsenic we are talking about in the ConcenTrace.
Fluoride does occur naturally, however, the concern over fluoride comes not from the naturally occurring fluoride, but from synthesized versions that are made by man and then added to our drinking water and to toothpaste. On average, we usually consume anywhere from 1.3-1.8 milligrams of fluoride a day from our foods. Fluoride naturally occurs in potatoes, beef, apples, chicken, milk, eggs, and oatmeal to name just a few.
The same applies to both Lead and Aluminum as well that are found in our product. Both are naturally occurring trace minerals found in their naturally occurring ionic state, and as such, are in similar amounts to that which is found naturally existing in many of the foods we consume.
Understanding how trace minerals work, helps to put into perspective the concerns over toxicity. Again, toxicity occurs when a single element is introduced out of balance with other trace minerals, and, as I said, man-made by-products are, all too often, the reason why we associate certain elements with toxicity.
Trace minerals work synergistically with one another to ensure that proper absorption, activation, regulation, and pH balance occurs within the body. An example of this synergistic relationship is that of the one between molybdenum and iron. All the iron in the world will do you no good without molybdenum. Molybdenum performs a very important, but basic, function by mobilizing iron from its storage location in the liver so that it can help blood carry oxygen to cells and tissues. This important, but often overlooked mineral, is vital in sustaining our lives, and only recently was its purpose discovered.
Another role of trace minerals is to police each other. When taken in proper balance, trace minerals control one another to ensure that no one element gets out of control and creates a toxic situation within the body. Trace Minerals Research does not manufacture their trace minerals. They are harvested in their naturally occurring state, and as such, also occur in their naturally balanced state. Again, in this state, they help to regulate one another, and create a balanced state within the body.
Best of health,
Dr. Darrin Starkey
Manager of Education and Training
Trace Minerals Research "
Hope this helped!
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Reviewed in the United States on March 30, 2017
★★★★★ 5
Great Mineral supplement, easily incorporated into food/drinks. No notable taste!
Flavor Name: Unflavored, Size: 2 Fl Oz (Pack of 1)
I would give 20 Stars if I could, too. It takes a few to 6 weeks to begin to experience the benefits, but when you do: Increasd energy, stamina, fingernails are stronger, and more. The liquid blends easily with any drink you have, it's pretty much flavorless and seems easily digestible.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Good stuff
Flavor Name: Unflavored, Size: 8 Ounce (Pack of 1)
I agree with many of the reviews, as far as the taste being horrible…It really is, it’s just so salty, that it doesn’t want to go down..I now mix it with a small amount of juice, equivalent to a shot glass…I can still taste it but nothing bad..You can try brushing your teeth first or suck on an ice cube before hand…That numbs the taste buds
It’s definitely a good product…The first day I took it, I did a 1/2 tsp = 40 drops, at night…I had horrible dreams and I never remember any of my dreams ever and I woke up with a mild headache that lasted just about all day..I wasn’t going to continue the drops…I then decided to divide the dosage in 1/2, I took 20 drops in the morning and 20 at night…That made a huge difference..I wake up no problem in the mornings. I don’t feel tired,I feel more focused now and my hot flashes aren’t as bad…I also have more energy throughout the day..I
don’t have issues with pain, my one knee does click and that’s even gotten better.
I have been taking it for about a week now…My husband is also taking it, ever since he had “Covid”, back in 2021,he had dry mouth and was drinking so much water and it wasn’t helping…He’s been on it for about 4 days now and has noticed a big difference in the dry mouth.
I will definitely continue to take this product.
I don’t normally write reviews, unless either, I really like a product or despise one and try and let people know.
It is a little pricey compared to others, but it lasts a long time…Our foods now are depleted because the soil isn’t rich in minerals anymore..I would definitely recommend this product.
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Reviewed in the United States on March 1, 2024