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Four AA carbon zinc batteries in blister pack, 1.5V

Panasonic

Panasonic UM-3NPA-4B 4 Pack AA Carbon Zinc Battery 1.5V

SKU CH-CM4V-NBAXK MPN UM-3NPA-4B

A four-pack of 1.5 V carbon-zinc AA cells suited to low-drain devices such as remotes, clocks and torches

  • Rated voltage1.5 V
  • Corded or cordlessCordless
  • Product typeBatteries
  • Size or dimensions"AA"
  • Reliable power for everyday devices with 1.5V output
  • Four AA batteries included in a single convenient pack
  • Carbon-zinc chemistry suits low-drain applications like remotes and clocks
  • Ready to use straight from the pack with no charging required
  • Trusted Panasonic quality for consistent performance in household electronics

Panasonic AA Carbon Zinc 4-Pack

This four-pack supplies Panasonic UM-3NPA-4B AA carbon-zinc cells rated at 1.5V. They are intended for low-drain electronics such as remote controls, clocks, radios, flashlights and toy trucks. The chemistry suits devices that draw only a small, steady current. Buyers who need high-drain performance for digital cameras or motorised toys should choose alkaline or lithium cells instead.

Low-Drain Thermal and Power Behaviour

In normal low-drain use the cells generate negligible heat and produce no audible noise. Their internal resistance remains stable while powering remotes, clocks or LED flashlights, so voltage sag is minimal during typical intermittent operation. The carbon-zinc chemistry delivers the rated 1.5V without measurable temperature rise under these light loads.

Sustained Load Characteristics

Under continuous load the voltage declines steadily as the active materials are consumed. Carbon-zinc cells are not designed for prolonged high-current discharge, so runtime shortens markedly if the current draw exceeds the low-drain profile. For applications that demand sustained power, alkaline or lithium alternatives will maintain voltage longer.

How it compares

Measured against everything we stock in Disposable & Rechargeable Batteries, at today’s prices. Recalculated every night.

Price $1.67
Cheaper than about 99% of the 985 comparable items (median $28.99).

Specifications

Product
Brand namePanasonic
Model nameUM-3NPA-4B
Product typeBatteries
Power
Rated voltage1.5 V
Corded or cordlessCordless
Size & build
Size or dimensions"AA"

Questions about this item

How do I install these AA batteries and which end goes where?

Insert each cell so the raised positive tip touches the device's plus contact and the flat negative end touches the minus contact; the common mistake is reversing one cell in a series string, which stops the device from working.

When will these carbon zinc cells need replacing in a typical low-drain device?

They are single-use primary cells; once the voltage drops below a useful level for your remote, clock or torch, discard the whole pack and fit four fresh ones.

What is the first limitation you hit when running a device continuously on these 1.5V cells?

Carbon zinc chemistry delivers modest capacity and rising internal resistance under sustained load, so voltage sag appears first, causing dimming or cut-out well before the rated energy is exhausted.

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