USB Dual Battery Charger for EN-EL3 / EN-EL3A (MH-18 / MH-18a)
Product description
What it is
A compact USB dual charger designed to power EN-EL3, EN-EL3A batteries from a USB source. It suits travellers and photographers who need to keep cameras ready without carrying a traditional wall charger. It supports automatic current control to help prevent overcharging and short circuits, while a smart LED indicates charging progress.
Who it’s for
If you use older Nikon bodies that rely on EN-EL3/EN-EL3A cells or the MH-18/MH-18a charging housings, this unit can be a useful add‑on for on‑the‑go charging. It’s especially practical for fieldwork, travel shoots, or spare‑battery setups where USB power is convenient.
How it performs
On paper, the charger takes a 5V USB input and delivers about 700mA at 8.4V. In practice, this makes for a steady charge suitable for compatible batteries, without the fuss of AC mains adapters. The device emphasises durability and modern charging circuitry, though the exact maximum rate is modest by today’s fast‑charging standards.
What to like
- Simple, portable power solution for EN‑EL3/EN‑EL3A packs with USB.
- Automatic current regulation helps reduce the risk of overcharge and electrical issues.
- Compact footprint and light weight make it easy to pack for trips.
- Smart LED gives a quick read on charging status, so you know when a cell is ready.
What might give you pause
- The charging current is in the region of 700mA, it won’t match higher‑capacity, USB‑C fast chargers used for modern batteries. If you need rapid top‑ups, this isn’t the speediest option.
- Compatibility is focused on EN‑EL3/EN‑EL3A batteries and certain Nikon housings, if you have a newer or different battery format, you’ll need a dedicated charger.
- The stated dimensions are utility‑class, if you need exact fitment for a tight bag pocket, verify the size against your kit.
Best use cases
This charger makes sense when you’re shooting with Nikon bodies that use EN‑EL3/EN‑EL3A cells and you’re reliant on USB power—think airport lounge, hotel room, or vehicle charging—where a compact, light charger is more helpful than a bulky mains unit.
Who should probably look elsewhere
If you require faster recharge times or a charger that supports a wider array of battery formats, you may want to explore other options. For heavy, frequent field use with newer batteries, a charger supporting USB‑C PD and higher currents could be a better fit.
What to check before buying
- Confirm battery compatibility: EN‑EL3, EN‑EL3A, MH‑18, MH‑18a batteries and the associated Nikon models you’ll operate.
- Assess your typical charging cadence: 700mA is fine for daily shooting but slower than modern fast chargers.
- Consider your power sources: ensure you have accessible USB power banks or USB mains adapters on your trips.
- Verify build quality and cable length if you rely on it in rugged environments.
Practical comparison in context
Compared with standard mains chargers, this USB dual charger is more flexible for travel and minimalist kits. It sits between a basic single‑slot USB charger and high‑speed dedicated adaptors. If you mainly shoot with older Nikon batteries and value portability over speed, it can be a sensible middle option.
Is it worth it?
Should you buy it?
It’s worth considering if you prioritise portability and USB‑based charging for EN‑EL3/EN‑EL3A cells and you don’t mind the modest charging rate. If you rely on ultra‑rapid recharges or use a wider range of newer batteries, you may prefer alternatives with higher current outputs.
FAQ
- Will it charge EN‑EL3A faster than EN‑EL3? The charger specifies a similar output, so charging time will depend on the battery’s capacity rather than a model distinction.
- Can I charge two batteries simultaneously? The description suggests a dual port design, but please confirm the actual two‑slot configuration and current split if you intend parallel charging.
- Is it compatible with USB‑C power banks? The input is 5V, compatibility with USB‑C PD depends on the bank and any inline adapters, but the unit itself doesn’t state PD support.
Final thought
If you’re keeping older Nikon gear on the road and want a small, straightforward USB charger, this model aligns with practical travel needs. It won’t replace a faster, more feature‑rich charger, but it offers dependable charge management in a compact form.