• Tactical Solar Handheld Radio Battery Charger Released

• Custom Battery Request Form Updated

• Reader Questions Answered: "Most Lithium ion batteries list a temperature range of -20° C to +60° C. Is it harmful to use the batteries at -40° C?"

• New NSN's Assigned

• Visit Ultralife at AFCEA TechNet Tampa and Other Trade Shows

• $1.2 Million Military Battery Order and Other Releases

• Ultra Brain Teaser

The MRC-197, a new tactical solar handheld radio battery charger, will allow the individual war fighter to safely and effectively recharge a standard tactical handheld radio lithium-ion battery and a high capacity lithium-ion battery. With its rugged construction, ease of use, intelligent charging, and ability to function in the most severe environments, the MRC-197 is the best choice for on-the-go charging.

Read the complete product announcement, or the MRC-197 Technical Data Sheet.
 

In an effort to streamline the way customers submit data for custom cell, battery and pack requests, we have updated the web form, reducing it from a multiple-page format to a single page.

The new single page form will allow users to submit their information in less than two minutes while still providing our engineers critical data to properly assess the request.

Click here to preview the new form.
 

Lithium ion batteries can be operated at -40 degrees, but the cell impedance at that temperature will rise dramatically, resulting in significantly reduced output current. This is not harmful to the battery, but it will operate at a significantly lower voltage at any given current. Available capacity to a given cut-off voltage will also be reduced, perhaps to less than 20 percent of the capacity at 23 degrees C. The reason for the increase in impedance is that the liquid electrolyte becomes viscous at very low temperatures, which reduces its conductivity.

Note that charging lithium ion batteries below -10° C is not recommended or supported by smart battery protocols.
 

The following products have recently been assigned NSN's:

• U10025: 6135-01-545-6582
• Sophie Battery: UK # 6135-99-834-4219
• LI-145: 6140-01-542-4380
• CH0003: 6130-01-499-7305
• CH0004: 6130-01-499-0352
• CH0008: 6130-01-545-1983
• CH0012: 6130-01-545-1981
• CH0015: 6130-01-542-5108
• CH0018: 6130-01-545-1984

Click HERE to see all of our products and associated NSN's on our Product Summary Guide.
 

Ultralife and McDowell Research will be displaying at the AFCEA TechNet show at the Tampa Convention Center in March. We'll also be at the Marine South show at Camp Lejeune, NC April 4 - 5.
 

• 12/12/06: Ultralife Batteries Receives $1.2 Million Military Battery Order

• 12/27/06: Ultralife Batteries Receives $2.9 Million in Military Battery Orders

• 2/6/07: Ultralife Batteries Receives $4.6 Million in Military Battery Orders

• 2/12/07: Ultralife Batteries Awarded $1.4 Million Contract for Tactical Repeater Systems

We all work hard, but sometimes you need to work your brain in different ways. This feature offers challenging puzzles to feed your brain.

Try and solve this issue's puzzle.