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Two rectangular lithium batteries and a small black USB charger with LED indicator

PowerTrust NP-BY1 2-pack batteries & LED USB charger

SKU CH-9D5D-3HYZE

Two lithium-ion batteries and a micro-USB LED charger replace NP-BY1, EN-EL11, D-Li78 and Li-60B cells for compatible cameras

  • Total capacity4.3 Wh
  • Battery chemistryLithium
  • Two spare batteries keep shooting going
  • LED USB charger shows charge status at a glance
  • Micro-USB input works with wall, car or power bank
  • 3 Wh lithium cells replace NP-BY1, EN-EL11, D-Li78, Li-60B
  • Built-in over-charge, short-circuit, high-temp and surge protection

Two NP-BY1 batteries and LED USB charger

This pack supplies two replacement lithium batteries and a compact LED USB charger for cameras that use the NP-BY1 or EN-EL11 format. It suits photographers who need spare power for extended shooting sessions or travel. The charger accepts standard micro-USB input from wall adapters, car chargers or portable power banks. Each battery stores 4.3 watt_hours of energy.

Micro-USB input and multi-source charging

The charger draws 5 V at 1 A through a micro-USB port and delivers 4.2 V at 0.7 A to the cells. An LED indicator shows charge status while the batteries are seated. You can top up the pack from any USB power source without a dedicated AC adapter. The design omits a fixed mains plug, so a separate USB power supply is required for wall outlet use.

Circuit protection and thermal safeguards

Built-in circuitry guards against over-charging, short circuits, high temperature and voltage surges. The fire-resistant housing adds a further safety layer during charging cycles. Output power is rated at 3 W, keeping heat generation low in normal operation. The charger runs silently with no moving parts. Not for users who need simultaneous charging of more than two batteries or a charger with an integrated AC plug.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $19.99
Pricier than about 60% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand namePowerTrust
Part numberNP-BY1
Total capacity4.3 Wh
Power
Battery chemistryLithium

Questions about this item

How many batteries can the LED USB charger handle at once?

The charger powers one NP-BY1 cell at a time; the pack includes two batteries so you can swap them while shooting.

What physical size must the battery compartment accept?

Each replacement cell matches the NP-BY1 / EN-EL11 form factor used in the listed Olympus, Pentax, Sony and Nikon models.

How do I connect the charger for the first charge?

Plug the supplied micro-USB cable into the charger’s input port and a 5 V USB source; the LED shows charging status.

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