Kastar 4-Pack BP-DC7 Battery and AC Charger - Extra Power for Leica

Our review of the Kastar 4-Pack BP-DC7 Battery and AC Wall Charger finds it best suited to photographers who need multiple spare power sources for extended shooting sessions with compatible Leica V-LUX cameras. The central appeal is straightforward: four lithium-ion 1700mAh batteries plus a compact wall charger provide a simple, cost-effective way to keep a V-LUX 20, 30 or 40 running through long shoots or travel days. For anyone who prefers swapping fresh batteries instead of waiting to recharge in the middle of a shoot, this pack delivers reliable capacity and a portable charger that works worldwide.

Key Features

• 1700mAh Lithium-Ion: Each battery provides substantial capacity to extend shooting time between recharges, useful for day-long sessions.
• 3.7V Nominal Voltage: The batteries match the original equipment voltage specification so they can be used as direct replacements in compatible Leica models.
• Universal AC Input: The included charger accepts AC 100~240V 50~60Hz, which makes it suitable for international travel when paired with the appropriate adapter.
• Compact Foldable Plug: The charger features a foldable flat pin for easy storage and packing in a camera bag without added bulk.
• LED Charge Indicator: The charger uses a red LED while charging and a green LED when on standby or fully charged, helping avoid guesswork about battery status.
• Four Batteries Included: The 4-pack lowers the need to recharge during shoots and offers multiple spares for multi-day use or shared gear situations.

Who It's For

This kit is aimed at enthusiast photographers and travelers who own a Leica V-LUX 20, V-LUX 30 or V-LUX 40 and want a practical set of spare batteries to avoid downtime. It is also suitable for videographers doing extended handheld recording where quick battery swaps are important. The pack is especially useful for people who prefer carrying several charged batteries rather than relying on a single battery and charger.

Photographers who need car charging or a European plug out of the box should note this kit does not include a car adapter or European plug; those users will need a separate adapter. If you require OEM branding or original manufacturer packaging, you may prefer an official Leica battery and charger instead.

Pros & Cons

Pros

• Includes four replacement 1700mAh batteries so you can swap quickly and shoot longer without waiting to recharge.
• Charger accepts AC 100~240V for worldwide use when combined with the correct local plug adapter.
• LED indicators provide a clear red/green status to show charging and full charge states.
• Foldable flat pin on the charger keeps the unit compact for travel and storage.

Cons

• Does not include a car adapter or European plug, so additional adapters may be required for some travel scenarios.
• Third-party replacement batteries may not come in OEM packaging, which could matter to collectors or warranty-conscious buyers.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	3.7V
Battery Capacity	1700mAh
Charger Input	AC 100~240V 50~60Hz
Charger Output	DC 4.2V 600mA
Charge Indicator	Red charging / Green standby or full
Package Contents	4-Pack Batteries + 1 AC charger

Our Verdict

The Kastar 4-Pack BP-DC7 kit is a practical, value-oriented choice for Leica V-LUX 20/30/40 users who need extra run time and simple, portable charging. With four 1700mAh lithium-ion batteries and a compact AC charger that supports global voltages, it eliminates most mid-day downtime at a reasonable cost, though travelers should plan for plug or car adapter accessories if needed.

Frequently Asked Questions

Will these batteries work with Leica V-LUX 30?
Yes, the pack is offered as replacement batteries compatible with Leica V-LUX 20, V-LUX 30 and V-LUX 40 models.

Does the charger work outside the U.S.?
The charger accepts AC 100~240V 50~60Hz so it supports international voltages, but the pack does not include a European plug or car adapter.

How do the LED indicators behave?
The charger shows a red light while charging and a green light for standby or when the battery is fully charged.