Premium Business / Public Safety Radio Batteries, Chargers & Audio Gear

PolyMax HPC Batteries

The Best - Period!

All Data Sheets


Premium Sandown Wireless Radio Batteries

For All Brands of Two-Way Radio


New PolyMax HPC Li-Po Digital Radio Battery Sheet

Catalogs, Data Sheets & Fliers

Current Premium High Performance Batteries for 2023

Bendix King / RELM, Generation 1 & 2 Midland
Blackbox RELM
Datron Tait
E.F. Johnson Uniden
Harris    Vertex
Hytera  Wilson
ICOM  Motorola Pager Batteries
Kenwood Rechargeable Flashlight Batteries
MA/COM, GE, Ericsson  


Sandown Wireless Two Way Radio Batteries - When Only The Highest Quality is Required!

If Your Considering the New Far Superior "Extended Life / Maximum Performance" Lithium Polymer Batteries

You Can Double Your Performance, And Triple the Life of the Battery!

Save Money Big Time, Purchase Batteries every 4-5 years, not every year!

Does your Life Depend on Your Radio Battery? Then Insist on the PolyMax HPC Batteries

Recommended Chargers - AC & DC Plus Audio Gear

Endura Brand

If We Sell the Battery, we have the Charger.

All these chargers are listed on our Amazon Store or just E-mail Us for a Quote.


Power Products Batteries are favored by Military World Wide!



If you have OEM Motorola Chargers, Look on the bottom of the Charger for the "C" Number. It must be Version 3.4 or Higher to Handle LiPo Chemistry.

If Your Considering the New Lithium Polymer Batteries

You May Need a New Charger

Double Your Performance, Triple the Life of the Battery!

Save Money Big Time! Li-Po Batteries require a Li-Ion Charger.



2023 Notes: All of our Premium Sandown Wireless brand batteries are made by Power Products in their new Hong Kong Facility. The new Ultra Capacity extended warranty Li-Polymer batteries offered by Sandown Wireless use PolyMax HPC (tm) cells. All batteries Meet and generally Exceed Factory OEM specifications. Detailed specification sheets are available on request.

Sandown Wireless brand batteries are warranted for 12 months, PolyMax HPC (tm) Li-Polymer types are 24 months materials and workmanship.

Yes, Premium Batteries cost a little more but you do get what you pay for.


Standard Warranty:

Sandown Wireless / Multiplier brand NiCD Types:   (1) One Year, Workmanship and Performance

Sandown Wireless / Multiplier brand NIMH Types:  (1) One Year, Workmanship and Performance.

Sandown Wireless / Multiplier brand Li-Ion Types: (1) One Year, Workmanship and Performance.

Sandown Wireless PolyMax HPC Batteries (Lithium Polymer) (2) Two Years, Workmanship and Performance


If any CriticalBattery fails to deliver at least 80% capacity during the Warranty period, it will be replaced at No Cost to You!

If any CriticalBattery fails due to workmanship during the Warranty Period, it will be replaced at No Cost to You!

We stand behind these Products 100%.

Try One, You will never go back to over priced O.E.M packs or bad fitting/performing aftermarket replacements.

Our New Chemistry, PolyMax HPC Cells or Impact Power Technology packs will out perform all of our previous offerings. These are simply the best you can buy!

Quantity Pricing is Available. If you need a quantity of these packs, just Contact Us. We will be happy to give you a bid.

Many of our Premium Packs are also Available on Amazon, Just copy/paste the link on the page to your browser.

Public Safety PO's w/N-30 are welcome as is our Order Form. Just E-mail it back to us.

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