Nikon

Nikon EN-EL4a Rechargeable Li-Ion Battery

4.5 (275 reviews)

Power Your Nikon Camera with ConfidenceThe Nikon EN-EL4a is a high-capacity rechargeable lithium-ion battery designed to power select Nikon digital SLR cameras. Offering reliable performance and long battery life, it ensures you can capture more shots without interruption. Its compatibility with ...

$126.95*
Check availability

*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

Power Your Nikon Camera with Confidence

The Nikon EN-EL4a is a high-capacity rechargeable lithium-ion battery designed to power select Nikon digital SLR cameras. Offering reliable performance and long battery life, it ensures you can capture more shots without interruption. Its compatibility with the BL-3 battery chamber extends its usability to other camera models.

  • Compatibility: Nikon D2H, D2Hs, D2Xs, and D3 digital cameras
  • Voltage: 11.1 volts
  • Capacity: 2,500 mAh
  • Technology: Lithium-ion
  • No Memory Effect: Recharge partially drained batteries without reducing performance
  • Dimensions: 3.2 x 1 x 2.2 inches (W x H x D)

Key Features

Nikon Branded Retail Package

Offers a rated capacity of 11.1 volts/2,500 mAh

Fits Nikon D2H, D2Hs, D2Xs and D3 digital cameras

Supports BL-3 battery chamber for D300 and D700 cameras

No memory effect; measures 3.2 x 1 x 2.2 inches (W x H x D)

Specifications

Battery Type
Li-Ion
Voltage
11.1 volts
Capacity
2,500 mAh
Dimensions (W x H x D)
3.2 x 1 x 2.2 inches
Compatibility
Nikon D2H, D2Hs, D2Xs, D3, D300 (with BL-3), D700 (with BL-3)
Feature
No memory effect

Pros & Cons

👍 Pros

  • Offers a rated capacity of 11.1 volts/2,500 mAh, providing significant power for compatible Nikon digital cameras
  • Designed as a genuine Nikon branded retail package, ensuring authenticity and compatibility with Nikon equipment
  • Specifically fits a range of Nikon DSLR cameras including D2H, D2Hs, D2Xs, and D3, ensuring direct functional use
  • Supports the BL-3 battery chamber for use with D300 and D700 cameras, expanding its compatibility to more models
  • Features a Li-Ion chemistry with no memory effect, allowing for charging at any time without degrading the battery's overall capacity
  • Provides reliable power for extended shooting sessions, minimizing the need for frequent battery changes
  • Compact dimensions of 3.2 x 1 x 2.2 inches (W x H x D) make it a portable power solution for photographers

👎 Cons

  • Compatibility is limited to specific older Nikon DSLR models (D2H, D2Hs, D2Xs, D3, D300, D700 with adapter), not universal across Nikon's lineup
  • While supporting BL-3 for D300/D700, this requires an additional accessory, which may incur extra cost or complexity
  • The capacity of 2,500 mAh might be considered standard for its era and could be outmatched by newer, higher-capacity batteries for other systems
  • No information regarding charge time or cycle life is provided, which are important metrics for rechargeable batteries
  • As an older battery model for discontinued cameras, its long-term availability or freshness might become a concern

Frequently Asked Questions

The Nikon EN-EL4a battery offers a rated capacity of 11.1 volts and 2,500 mAh.
This battery specifically fits Nikon D2H, D2Hs, D2Xs, and D3 digital cameras. It also supports D300 and D700 cameras when used with the BL-3 battery chamber.
No, the Nikon EN-EL4a is a Li-Ion battery, which means it has no memory effect, allowing you to recharge it at any point without impacting its capacity.
The battery measures 3.2 x 1 x 2.2 inches (W x H x D), making it a compact power source.
Yes, it is supplied in a Nikon Branded Retail Package, indicating it is an authentic Nikon product.