Makita BL1850B 18V LXT® Lithium-Ion 5.0Ah Battery

I have nothing but nice things to say about this battery. It is almost identical in dimensions and weight to the BL1830's, but adds an additional 2 amp hours of runtime, the battery capacity gauge, and Star protection. The battery capacity gauge works well. Activating it requires depressing a small push-button switch on the back of the battery. This is a plastic "bubble" style magnetic switch found on devices like kitchen timers. This style of switch is not the most durable, and seems to be the weak link in what is otherwise a very well-made product. So far so good, though, so perhaps this will not be an issue over the life of the battery. Star protection is Makita's name for an internal circuit that will not let you overheat the battery, or run the battery down to such a complete state of discharge that it cannot be recharged, which can be an issue with some lithium battery systems, like Makita's own BL1830 batteries. The best feature of this battery over an 1830 is the warranty: 3 years instead of just one. That makes this a pretty reasonable investment for any regular user. Also note that the additional capacity should mean fewer recharge cycles, and thus longer life. While I have nothing but nice things to say about this battery, I do have some less-nice thing to say about Makita. The Star protection is great, but they sold non-Star tools and batteries for a number of years, leaving a lot of customers such as myself with a significant investment in these products. While Star protection is marketed as a feature of the new generation of tools and batteries, a more honest evaluation would be that Makita sold a tool/battery system with a significant design flaw for quite a while. This battery represents what is essentially a totally different battery system. It looks the same, is still called "LXT," and uses the same chargers, but it is physically not compatible with the old tools without warranty-voiding modification. If you have non-Star tools, you can easily take a chisel to the small tab that prevents this battery from mating with them, and this battery will power them just fine. However, this modification definitely voids the tool warranty, and might void the battery warranty as well-- these batteries do contain a memory chip, and I have not been able to find any definitive information on whether or not they log interfacing with a non-Star tool. It also means that the battery will not be protected by the Star circuitry when using that tool. I am currently "playing it safe" and using this battery only with my Star tools. I'm not quite sure what I'll do if my non-Star tools outlast my dwindling BL1830 fleet. As much as I love my Makita tools, unless Makita offers some kind of trade-up program, I have a feeling that the solution might be yellow and black.

Seems to be genuine. Came in original package. Fits as expected. Charges within the 45mins as stated with the rapid charger. Weight alittle more than a 3amp. Will buy another soon.

Used it with the Makita hedge trimmer and it did the whole job with charge left.

its a battery it does what it should.

This is original batteries from the manufacturer and last longer than the off brand.

Good quality

Working pretty good i recomended

Holds a charge. Definitely do your homework and you will conclude why to buy name brand batteries.

Good and powerful Battery. Deliver service very fast. Received before delivery date.

Very good service. Product is genuine which I wanted. Battery so far so good.

Ottima una carica dura una vita. Velocissima a ricaricarsi con il suo carica batteria rapido. Ottima per i professionisti

Excelente batería. Tiene muy buena duración y potencia, perfecta para trabajos intensivos sin perder rendimiento. Se carga rápido y encaja perfectamente con las herramientas Makita. Se nota la calidad desde el primer uso. Totalmente recomendada.

The product was received in a couple of days and the seller was in touch throughout the process. They should the delivery delivery happen on time and The service was up to standard. I do recommend the seller and the product as advertised working with Makita LXT products.