UNIDEN AE 155 Cordless Phone Battery for UNIDEN AE 155

Product code: UNIDEN AE 155 - Ener CP03UNM
Brand: Energizer
Condition: New
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This UNIDEN AE 155 battery is made by Energizer. It is designed to be used in many cordless phones including your  UNIDEN AE 155.

  • Made by a renowned quality manufacture, Energizer
  • Excellent working life with a 2 year Manufacturer’s guarantee!
  • Fast Delivery, Often next day! Mon - Fri (See Delivery & Returns)
  • Only Fresh stock held at Pioneer Batteries, guaranteeing batteries with Long Lives.
  • No minimum order quantity.
  • Order yours today.

Is your cordless phone failing to hold its charge like it used to? Are you constantly hearing the annoying battery low beep whilst talking on the phone? Then its time to change its battery and you have come to the right place - Pioneer Batteries.

The Energizer UNIDEN AE 155 battery pack is essentially 3 x large, round button cell batteries set in a V shape with 2 wires leading to 2 separate connectors. Clicking the pictures above will make them larger.

The battery pack is rated at 3.6 volts and 320 mAh (don’t worry if the mAh rating is different just read the frequently asked questions below)

Do you have more than one cordless phone in your household? Why not replace them all now and save yourself a job for a later date. Buy in bulk and save on the postage.


My battery is a NiCd. Can I use a NiMH equivalent in my phone? 

Absolutely. In the past cordless phones have been supplied with a rechargeable NiCd (Nickel–Cadmium) battery. Using a NiMH (nickel–metal hydride) battery to power your cordless phone will work perfectly, and in most cases be an improvement.

The primary reason to switch from NiCd batteries is their use of cadmium. This heavy metal is an environmental hazard, and is highly toxic.

My battery has a different mAh rating. Is this OK?

The mAh (milliampere-hour) rating of a battery is just an indication of how much power the battery pack can store. If our battery has a higher or lower rating than the original don’t worry, it is not essential for it to be the same. In basic terms the higher the mAh rating, the longer you can use your cordless phone without a recharge.

How long does it take to charge?

Once the battery has been correctly installed and checked, a full charge is required. With a new cordless phone battery pack, it is essential that you leave it in the phone to be charged for at least 20 hours before use. The charger units built into cordless phones produce only a tiny charging current to avoid damaging the battery pack when the handset is left on the base unit for days or even weeks without use. The result is it takes about 20 hours before a new battery pack is fully charged.

  • Type: NiMH  
  • Voltage: 3.6v – 320 mAh
  • Width: 51 mm
  • Height: 10 mm
  • Depth: 48 mm
  • Connector: Universal Plug (2 wires)
  • Comprises of: 3 x flat, round NiMH cells, 2 wires (1 Black, 1 Red)


We hope we have cleared up any questions you may have had, Pioneer Batteries work hard to bring you all the information you require when purchasing any kind of batteries. Buy your Energizer UNIDEN AE 155 batteries from us today, with fast delivery!