The Li-ion range delivers 430% more working capacity during its lifetime compared to Ni-Cad and is 40% Lighter than Ni-MH. It's difficult to come up with a review for a battery, I charged it up and my drill now works for more than 5 minutes with a new battery. The Makita 196673-6 BL1850B 18v 5Ah LXT Li-Ion Genuine Makstar Battery will keep your cordless Makita power tools running efficiently and for long periods. Whether you are a tradesperson or a DIY buff, if you use Makita cordless power tools this battery will keep them juiced up. They weigh the same as the 3Ah batteries so you get more power and performance without sacrificing comfort when attaching them to tools. There is no need to worry about limited compatibility either because the BL1850B will work with any Li-Ion chargers that you currently own. The Li-ion range delivers 430% more working capacity during it's lifetime compared to Ni-Cad and is 40% Lighter than Ni-MH.

You rely on your tools, so Makita created STAR Protection Computer Controls™. STAR Protection is communication technology that allows the tool and battery to monitor conditions and exchange data in real-time to protect against Overloading, Over-Discharging and Over-heating. Look for Makita tools and batteries with the STAR and get these protection features. This product is sold as a single unit.Makita 18V Lithium-Ion batteries resist self-discharge so they’re ready for use even after long periods of storage. The Makita Rapid Optimum Charger (sold separately) is a smart-charging system that communicates with the battery during the charging process to monitor current, voltage and temperature. This advanced charging technology helps optimize battery life and deliver a faster charge. In addition, the Charger has a built-in fan to cool the battery for faster and more efficient charging, even in hot weather conditions. The 18V LXT® 5.0Ah battery is compatible only with Star Protection tools, indicated by the Star Symbol™ and/or Yellow Battery Receiver under the tool. They're great, you charge them an the make your tools work. My kit would be pointless without them. Great stuff.

Charge times: 14.4/18V 3.0Ah battery in 22 mins 18V 4.0Ah battery in 36 mins 18V 5.0Ah battery in 45 mins Where uninterrupted run time is critical, such as on remote construction locations or where charging capacity is distant and would mean valuable time lost away from the operating point, extended run time is all important. The Makita BL1850B 5.0Ah 18v Li-ion battery provides 66% more run time than that of the 3.0Ah battery whilst maintaining the same size and weight so maintaining the excellent balance and comfort of a Makita tool in use. Compact and lightweight battery charger designed to charge slide type lithium-ion batteries BL1011B, BL1021B and BL1016B. Battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C)

12V & 7.2V LITHIUM-ION

The new Makita 2.0Ah battery with a 30 minute fast charge time with a DC10SB charger or 70 minute standard charge time with a DC10WD charger. Recharge time for the BL1850B 5.0Ah battery is just 45 minutes when using a Makita DC18RC or DC18RA fast charger. This compares with 22 minutes for the popular 3.0Ah 18v Makita Li-ion battery or 36 minutes for the 4.0Ah Li-ion battery. The battery capacity indicator LED's which show you how much power you have left at the touch of a button.

DC18RD is a two port fast charger that is able to charge two Makita Li-ion batteries (14.4V-18V) at the same time, as fast as DC18RC charges one battery. Makita BL1850B 18v 5Ah Li-ion battery is compatible with 18v tools if they have a star on the connector plate or has a yellow connector plate Charge times: 14.4/18V 3.0Ah battery in 60 mins 18V 4.0Ah battery in 90 mins 18V 5.0Ah battery in 110 mins Charge Times: 2 x 14.4/18V 3.0Ah Batteries in 22 mins 2 x 18V 4.0Ah Batteries in 36 mins 2 x 18V 5.0Ah Batteries in 45 minsThe new Makita 4.0Ah battery with a 60 minute fast charge time with a DC10SB charger or 130 minute standard charge time with a DC10WD charger. Makita technology delivers category-leading charge time so the battery spends more time working and less time sitting on the charger (charger not included) This BL1850B 5.0Ah battery is compatible with all Makita 18v Li-ion tools that have a star symbol on the connector plate, or a yellow connector plate with a star on, or have a yellow connector plate only. Recharge time for the BL1850B 5.0Ah battery is just 45 minutes when using a Makita DC18RC or DC18RA fast charger. This compares with 22 minutes for the popular 3.0Ah 18v Makita Li-ion battery or 36 minutes for the 4.0Ah Li-ion battery. The battery capacity indicator LED's which show you how much power you have left at the touch of a button.