Basically, the role of the aftermarket is to give the consumer or the user choices. Alexander Technologies offers a variety of rechargeable replacement batteries for a number of products, and battery chargers and optimizers to enhance the life and capacity of replacement batteries. Review the product category listings on this web site to search for the batteries and chargers you need.

To match a battery from Alexander Technologies to your equipment simply identify the radio and/or battery part number used by the OEM.

The part numbers on products from Alexander Technologies usually refer to the OEM battery it replaces. For example, we sell a R56215, which replaces the batteries for Kenwood radios.  Kenwood describes their battery as a KNB15, dial KNB on your phone and you get ‘562’. Alexander Technologies also sells a H7144 replacement for a Motorola HT1000, MT2000 radio. Motorola has used the numbering system NTN7144. 

Alexander Technologies now sells many NiMH batteries as direct replacements for original NiCd batteries. We maintain that NiMH technology has progressed to the point where the cells are robust enough to be charged in NiCd chargers and to be used, in most cases, interchangeably with NiCd batteries.

The only difference of a higher or lower capacity is run time. If all other cross-reference information is consistent, a differing capacity makes no real difference; if the cross-reference and voltages are the same, the battery should work just fine.

Nickel Cadmium (NiCd) battery packs should receive a slow trickle charger for the first charge.  Charge and operating temperature of 65°F is optimum and you should routinely clean the battery and charger contacts.  Don’t charge or operate in temperatures above 120°F or below 40°F, or leave the battery in the charger for more than 48 hours.  Most NiCd battery packs can be charged in 1-2 hours with a fast charge system.

Nickel Metal Hydride(NiMH) battery packs should receive a fast charge.  NiMH battery packs are more sensitive to overcharging, and can typically be recharged in 2-3 hours with a fast charge system. Charge and operating temperature of 65°F is optimum and you should routinely clean the battery and charger contacts.  Don’t leave in the charger for more than 48 hours. 

Lithium Ion battery packs should be charge only on chargers designed for them.  Typical charge time is 3 hours.  Don’t use your battery after charge if it becomes hot, as either the battery or the charger has a problem.

You should recondition your NiCd and NiMH battery packs once a month and/or when your run time is significantly reduced.  Do not recondition more than prescribed or expose the battery to high heat.

Lithium Ion battery pack have no memory effect like NiCD does, but by properly taking care of your battery you can maximize its life. Use your Lithium Ion battery in area’s that temperature does not vary widely and do not expose it to excessive heat.

Yes, please see information on Alexander Technologies 2000 Series Optimizer. NiCd battery packs will offer more than 500 cycles over their life if properly maintained.  Premature failure due to memory effect can be reversed with the Alexander Optimizer.

NiMH battery packs have a higher energy density and are easily reconditioned. NiMH battery packs will offer more than 500 cycles over their life if properly maintained.

Lithium Ion battery packs don’t have a memory that needs to be reversed, but with proper care and using the Alexander Optimizer, you can view and track voltage, capacity and problem packs.

NiCd and NiMH battery packs should be fully charged before long term storage, say 6-12 months. Recommended storage temperature is between 50°F and 86°F.  Storage at any higher temperatures can lead to deterioration of the cells. Both NiCd and NiMH battery packs will self-discharge during storage, and can typically be fully revived.

Lithium Ion battery packs should be stored in a cool place away from any heat sources.  They will remain charged for more than 1 year, and should be recharged before use.

We do not carry battery pack for FRS radio at this time. However, most FRS radios provide an option to use single round cells (AA, AAA).

Yes. Alexander Technologies has batteries for Land Mobile Radio (LMR) Systems that operate on these frequency ranges.

Alexander Technologies provides some pager batteries as part of the land mobile radio battery program.

This is a specially-engineered and tested battery that is spark and flame proof. Many end users require the use of intrinsically safe batteries.

Yes. Alexander Technologies offers a limited line of "intrinsically safe" batteries. Intrinsically safe refers to a tested characteristic. Customers should understand that intrinsically safe batteries we offer are tested and certified by Factory Mutual Corporation, the industry standard. FMC is an insuring and certifying company that provides an industry-recognized stamp of approval on intrinsically safe products.

It should be noted that intrinsically safe batteries must be sold under the same consistent label for which they were approved. Neither Alexander Technologies nor any other supplier is permitted to sell intrinsically safe batteries in a no label or private label version without full approval from Factory Mutual; therefore, Alexander Technology Factory Mutual approved intrinsically safe batteries have a special green label that clearly identifies them as I/S.

Yes! All battery packs should be recycled or disposed of properly. Check with your local/state agency to learn of the guidelines concerning the disposal of batteries.

Yes. Review the Warranty information included on our web site.