K&F CONCEPT EN-EL15 Dual Slot Fast Charger (EN-EL15/EN-EL15a/EN-EL15b) with USB-C and Micro USB cable
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Product description
If you’re juggling camera sessions, the boring problem is always the same: batteries run down faster than you’d like. This K&F CONCEPT dual-slot charger is built for Nikon EN-EL15-series batteries, with the practical bonus of a display and a two-bay charging setup so you can top up more than one cell at a time.
That said, it’s not a one-size-fits-every scenario. Depending on how you travel and what you already own, the “USB-anywhere” approach is either brilliant or a little confusing (especially around what’s actually included in the box).
The essentials
This is a dual-bay fast charger designed for Nikon EN-EL15, EN-EL15a and EN-EL15b batteries. The core pitch is simple: pop in up to two EN-EL15-series batteries and let it charge them while showing you the charging status on a dual LCD display.
It also aims to fit into everyday life because it can be powered by USB output from devices such as a USB charger, a laptop, a PC, a USB car charger, or a power bank. That flexibility is useful if your shooting schedule doesn’t neatly align with wall sockets.

For day-to-day context, imagine you’re out for the afternoon with two batteries. You shoot for an hour, swap batteries, then come back to your car or your hotel and plug in the charger via USB to top both up rather than waiting on a single-battery charge.
Where it shines
The dual slot is the most noticeable advantage. Over the slower “one battery at a time” approach, having two bays means you can plan around sessions rather than waiting around. The input behaviour also varies depending on whether you charge one or two batteries: the stated current is higher when charging one battery (8.4V/700mA) and lower when charging both at the same time (500mA).
The LCD display is another practical touch. Battery charging can be a bit of guesswork with basic chargers, here, the charger is designed to show the charging state more precisely.


K&F CONCEPT also lists a smart protection set for safer charging: protection against overload, high temperature, overcurrent, overvoltage, and short circuit. Whether you’re charging at home or powering it via USB in transit, that sort of protection is exactly what you want to see on a charger you’ll rely on.

What matters most for compatibility
On paper, compatibility is strong for Nikon users because it’s stated as 100% compatible with EN-EL15/EN-EL15a/EN-EL15b batteries. The entry also lists a range of camera models it’s intended for, including Nikon D7000, D7100, D7200, D750, D850, D810, D800, D800E, D610, D600, D500, and some mirrorless bodies like Z6 and Z7, plus V1.
However, worth keeping in mind: the list is explicitly described as “some models”. So while it looks very targeted for the EN-EL15 family, you’ll still want to double-check your battery model before buying.
Tech summary
- Charger type: Dual slot fast camera charger for Nikon EN-EL15/EN-EL15a/EN-EL15b batteries
- Charging display: Dual LCD screen showing the charging status
- Power input: Can be powered by USB output devices such as USB chargers, laptops, PCs, USB car chargers, or power banks
- Protection features: Overload, high temperature, overcurrent, overvoltage, and short circuit protection
- Charging behaviour: Higher current when charging one battery (8.4V/700mA), lower current when charging two batteries at the same time (500mA)
- Cable note: The product includes a USB-C cable (the description mentions Type-C and Micro USB, but also notes the product only contains a Type-C cable)

Who it’s for (and who should skip it)
It makes sense if you own Nikon cameras that use EN-EL15, EN-EL15a or EN-EL15b batteries and you’d like a charger you can power via USB in more places than just by a wall.
It may not suit you if you’re expecting the charger to include both USB-C and Micro USB cables. The description includes a clarification that the product only contains a Type-C cable. If you specifically need Micro USB output/cabling for your existing kit, you may find yourself sourcing a compatible cable separately.


Also, this listing doesn’t include camera batteries themselves—so if you’re starting from zero, you’ll need to purchase batteries separately.
It’s a solid “middle of the day” accessory rather than something you’d buy to solve a niche problem. In other words, it’s best when you already have the Nikon battery ecosystem and want a straightforward, dual-bay charger.

Practical tips for getting the most from it
Charge planning matters here because the stated current drops when you charge two batteries at the same time. If you’re up against a tight window—say you’re leaving soon—prioritising one battery at a time may get you back on schedule faster.
For travel, USB powering is the headline benefit. Pack the charger with a reliable USB power source you already trust (like a laptop charger or power bank). Then, when you return between shoots, you can top up both batteries without hunting for the right mains adapter.
Should you buy it?
This K&F CONCEPT dual-slot EN-EL15 charger is worth considering if you’re a Nikon owner using EN-EL15-series batteries and you want a USB-powered charger with a dual LCD display and listed safety protections. The dual-bay design is particularly helpful for shooters who cycle batteries often and hate downtime.

You may want to skip it if you don’t actually use EN-EL15/EN-EL15a/EN-EL15b batteries, or if you were counting on both Type-C and Micro USB cabling being included (the listing notes the product only contains a Type-C cable). It’s also not the choice if you’re expecting batteries to be included.
Quick FAQ


Does it come with camera batteries?
No. The listing notes that the product does not contain batteries for cameras.
Will it charge two batteries at the same time?

Yes. It has two charging slots and supports charging two EN-EL15-series batteries together, with a lower stated current when doing so.
Can I power it from a power bank or laptop?
The description says it can be charged via USB output from devices like USB chargers, laptops, PCs, USB car chargers and power banks.
What batteries is it compatible with?
It’s stated as compatible with Nikon EN-EL15, EN-EL15a and EN-EL15b.
Is Micro USB included?
The description includes a note that the product only contains a Type-C cable, even though it mentions Type-C and Micro USB in the title/overview.
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