srbatteries.com

3x3.gif (810 bytes) 3x3.gif (810 bytes)
 

Contact SR Section
R/C Aviation Section
Return to Home Page

 

Electric Flight Packs...


efanat1.jpg (10703 bytes)

Our electric flight cells have the highest capacities for the lowest weights and will give you the longest flight times. Our packs are made up of aerospace grade, screened and matched cells. Every pack goes through 3 days of testing and our packs are guaranteed to never form a memory.

The nickel straps we use between cells are very special. Besides having a strain relief formed into them, we use 6 welds per strap end. In addition, we use a stack of up to 4 straps between cells for a total of up to 48 welds. The result is the lowest possible pack impedance which will deliver the highest possible current flow.

efstrap.jpg (10178 bytes)
We make a range of cells from 190mah to 5000mah in both standard and extra low impedance Max series cells. You can order cells loose, screened, tested, and with or without solder tabs. Or, you can order a finished, welded, wired pack with matched cells, less connector. For an additional charge, we can add the connector of your choice.

What's the difference between a Max cell and a Standard cell?
Max cells have a very low impedance which means they can be fast charged at higher rates in a shorter period of time and they can be used in applications that draw more current. The best way to think of it is as two buckets, one with a 1" hose coming out of it and the other with a 3" hose coming out of it. Naturally, you won't be able to fill the bucket or empty it as fast through a 1" hose compared to a 3" hose. Max series cells have 3" hoses.

So, why would you want to use a Standard series cell? Well, Standard series cells tend to have more capacity for a given size and weight. Also, for Park Flyers and Indoor electric flight, Standard series cells give you smaller and lighter cells for a given capacity.

Fast charge rates...
When fast charging a pack, you have to be very careful not to over charge the pack. If you do over charge a pack, the cells can literally explode and seriously harm you and the people around you! For this reason, you should always fast charge a pack outside of your aircraft where you can feel and monitor the temperature of the pack while it is charging. A pack only becomes warm to the touch when it is being over charged. Fast charging itself does not heat up a pack. Only over charging heats up a pack.

Pack voltages...
We typically think of NiCd (Nicad) cells as having a voltage of 1.2 volts per cell. So, if your application calls for a 7.2 volt pack it means you need a 6 cell pack ( 6 x 1.2 = 7.2). We can arrange the cells in any shape you'd like. See the Pack Shape link below.

Connectors...
We stock all of the major connectors being used in electric flight. We can either supply connectors loose so you can install them yourself, or we can install a connector for you for a small additional charge. Sermos and Deans Ultra connectors are $5 each installed. Astro connectors are $6.50 installed. For loose connector prices, see the Wire & Connectors area of the Electric Flight Equipment section of our site.

Finished pack shapes...
For suggestions as to how to describe a particular shape pack, click here... Pack Shapes

Special Instructions...
If you have any special instructions for your pack, i.e.- extra long leads, a certain gauge of wire, etc, please indicate these requests on the special instructions section of the order form. 

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

Prices listed are PER cell.


3x3.gif (810 bytes) 3x3.gif (810 bytes) 3x3.gif (810 bytes)
190 Series

We're often asked why we don't make a 110mah cell. If you look at the weight of the typical 110mah cell compared to our 190, you'll find that for only a slight weight penalty, you get almost a 50% capacity increase with our 190. The 190 is used for both indoor and outdoor R/C applications including Park Flyers.

The internal impedance for the 190 Series pack is 30.0m Ω. Click here for details about Internal Impedance.

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

3x3.gif (810 bytes)

190 Series... 190mah, for Speed 280 and smaller

Single Cell
Size & Wt.
Slow Charge
Rate
Fast Charge
Rate
Unmatched Cells, Loose Matched Cells, in Finished Pack

.47"D x 1.14"L
.32oz

14-16hr@
20ma

500ma

$4.25 $7.25

Matched Cells in a Finished Pack

Number of Cells in Pack:  3x3.gif (810 bytes)
3x3.gif (810 bytes)
Pack Shape:3x3.gif (810 bytes)
3x3.gif (810 bytes)
Connector:  3x3.gif (810 bytes)   
3x3.gif (810 bytes)
Qty of Packs:  3x3.gif (810 bytes)
3x3.gif (810 bytes)

 
Unmatched Cells, Loose - Please specify whether you want tabs
 
TABS:         QTY:

 

500 Max Series

The 500 Max, like the 1300 Max and 2000 Max, is one of our favorite cells. It is perfect for Speed 400 applications and School Yard electric flight. It has a capacity of almost 600mah yet has an extremely low internal impedance. It easily out performs other similar size cells.

The internal impedance for the 500 Max Series pack is 9.0m Ω. Click here for details about Internal Impedance.

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

3x3.gif (810 bytes)

500 Max Series...575mah, for Speed 400 and smaller

Single Cell
Size & Wt.
Slow Charge
Rate
Fast Charge
Rate
Unmatched Cells, Loose Matched Cells, in Finished Pack

.67"D x 1.1"L
.66oz

14-16hr@
60ma

2A

$4.00 $7.00

Matched Cells in a Finished Pack

Number of Cells in Pack:  3x3.gif (810 bytes)
3x3.gif (810 bytes)
Pack Shape:3x3.gif (810 bytes)
3x3.gif (810 bytes)
Connector:  3x3.gif (810 bytes)   
3x3.gif (810 bytes)
Qty of Packs:  3x3.gif (810 bytes)
3x3.gif (810 bytes)

 
Unmatched Cells, Loose - Please specify whether you want tabs
 
TABS:         QTY:

 

1200 Max Series

The 1200 Max Series cell gives you light weight and low internal impedance. It is very popular for LMR (Limited Motor Run) applications where you're only allowed a short motor run. There's no point in carrying the weight of more cell than you're allowed to use. It is also very popular for Speed 400 Pylon Racing events.

The internal impedance for the 1200 Max Series pack is 6.0m Ω. Click here for details about Internal Impedance.

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

3x3.gif (810 bytes)

1200 Max Series... 1200mah

Single Cell
Size & Wt.
Slow Charge
Rate
Fast Charge
Rate
Unmatched Cells, Loose Matched Cells, in Finished Pack

.9"D x 1.02"L
1.2oz

14-16hr@
120ma

4.0A

$7.00 $10.00

Temporarily Out Of Stock

Matched Cells in a Finished Pack

Number of Cells in Pack:  3x3.gif (810 bytes)
3x3.gif (810 bytes)
Pack Shape:3x3.gif (810 bytes)
3x3.gif (810 bytes)
Connector:  3x3.gif (810 bytes)   
3x3.gif (810 bytes)
Qty of Packs:  3x3.gif (810 bytes)
3x3.gif (810 bytes)

 Temporarily Out Of Stock
Unmatched Cells, Loose - Please specify whether you want tabs
 
TABS:         QTY:

 

2400 Max Series

The 2400 Max's high capacity and low internal impedance make it perfect for all but the smallest electric flight applications.

The internal impedance for the 2400 Max Series pack is 4.0m Ω. Click here for details about Internal Impedance.

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

3x3.gif (810 bytes)

2400 Max Series... 2400mah

Single Cell
Size & Wt.
Slow Charge
Rate
Fast Charge
Rate
Unmatched Cells, Loose Matched Cells, in Finished Pack

.9 x 1.69
2.1 oz

14-16hr@
240ma

6A

$8.50 $11.50

Matched Cells in a Finished Pack

Number of Cells in Pack:  3x3.gif (810 bytes)
3x3.gif (810 bytes)
Pack Shape:3x3.gif (810 bytes)
3x3.gif (810 bytes)
Connector:  3x3.gif (810 bytes)   
3x3.gif (810 bytes)
Qty of Packs:  3x3.gif (810 bytes)
3x3.gif (810 bytes)

 
Unmatched Cells, Loose - Please specify whether you want tabs
 
TABS:         QTY:

 

3000 Max Series

The 3000 Max Series cell is a full "C" size cell. Recently, it has become popular for giant scale electric applications with 60 and 90 size electric motors.

The internal impedance for the 3000 Max Series pack is 3.0m Ω. Click here for details about Internal Impedance.

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

3x3.gif (810 bytes)

3000 Max Series... 3000mah

Single Cell
Size & Wt.
Slow Charge
Rate
Fast Charge
Rate
Unmatched Cells, Loose Matched Cells, in Finished Pack

1.02"D x 1.97"L
3.0 oz

14-16hr@
300ma

8A

$14.50 $17.50

Matched Cells in a Finished Pack

Number of Cells in Pack:  3x3.gif (810 bytes)
3x3.gif (810 bytes)
Pack Shape:3x3.gif (810 bytes)
3x3.gif (810 bytes)
Connector:  3x3.gif (810 bytes)   
3x3.gif (810 bytes)
Qty of Packs:  3x3.gif (810 bytes)
3x3.gif (810 bytes)

 
Unmatched Cells, Loose - Please specify whether you want tabs
 
TABS:         QTY:

 

5000 Max Series

Most modelers have no need for our 5000 Max Series cell. However, NASA uses it extensively for the "Drop Model" testing programs and the Navy uses it for electric flight experimentation. If you need the highest capacity in a reasonably priced cell, the 5000 Max is the cell to use.

The internal impedance for the 5000 Max Series pack is 3.5m Ω. Click here for details about Internal Impedance.

If you need something different, like a custom shape, or a different number of cells than those listed below, just drop us an email or give us a call.  We'll be happy to work with you to get exactly what you need.

3x3.gif (810 bytes)

5000 Max Series... 5000mah

Single Cell
Size & Wt.
Slow Charge
Rate
Fast Charge
Rate
Unmatched Cells, Loose Matched Cells, in Finished Pack

1.34"D x 2.4"L
5.3oz

14-16hr@
500ma

10A

$19.50 $22.50

Matched Cells in a Finished Pack

Number of Cells in Pack:  3x3.gif (810 bytes)
3x3.gif (810 bytes)
Pack Shape:3x3.gif (810 bytes)
3x3.gif (810 bytes)
Connector:  3x3.gif (810 bytes)   
3x3.gif (810 bytes)
Qty of Packs:  3x3.gif (810 bytes)

 
Unmatched Cells, Loose - Please specify whether you want tabs
 
TABS:         QTY:

 

� Copyright 1998 - 2006  SR Batteries, 1335 Broadway Ave., Holbrook, NY 11741
Phone: 631.286.0079  Email: office@srbatteries.com
All rights reserved. No portion may be reproduced in any way
without written permission from SR Batteries