Holding a battery in your hand, I was surprised by how light and compact the BM Premium D-LI109 Batteries & USB Charger for Pentax DSLR felt—almost like a feather but packed with enough power to keep shooting all day. Its sleek design and convenient USB charging made me realize how effortless it is to keep your camera ready, especially during those long shoots or trips.
After testing, I found that the biggest advantage of this set is its reliable 1200mAh capacity and one-year warranty, offering solid performance without breaking the bank. It consistently delivers quick, dependable power, and the included dual charger means less downtime. Compared to bulkier or less supported options, this one balances quality and value perfectly. Trust me, if you want hassle-free shooting and peace of mind, the BM Premium D-LI109 Batteries & USB Charger for Pentax DSLR hits the sweet spot.
Top Recommendation: BM Premium D-LI109 Batteries & USB Charger for Pentax DSLR
Why We Recommend It: This set includes two reliable batteries with 1200mAh capacity, ensuring long-lasting power. Its USB charging feature adds convenience, and the one-year warranty backs its quality. Unlike the Kastar 4-Pack with 2100mAh batteries, the BM Premium offers great value without sacrificing performance, especially with its built-in safety protections and included charging accessories.
Best batteries for pentax ks2: Our Top 5 Picks
- BM Premium D-LI109 Batteries & USB Charger for Pentax DSLR – Best for DSLR Cameras
- BM Premium D-LI109 Battery Pack for Pentax DSLR Cameras – Best Value for DSLR Users
- Kastar 4-Pack DLi109 Battery & LTD2 Charger for Pentax DSLR – Best for Extended Shoot Sessions
- BM Premium D-LI109 Battery for Pentax DSLR Cameras – Best Overall Camera Battery
- High Capacity ‘Intelligent’ Batteries Pentax K-S2 + AC/DC – Best for Long Shoot Sessions
BM Premium D-LI109 Batteries & USB Charger for Pentax DSLR
- ✓ Long-lasting battery life
- ✓ Easy USB charging
- ✓ Includes extra batteries
- ✕ Charging speed could be faster
- ✕ Compatibility limited to Pentax models
| Battery Model | D-LI109 / DLI109 |
| Capacity | 1200mAh |
| Voltage | 7.4V |
| Chemistry | Li-ion |
| Compatibility | Pentax KP, K-R, K-S1, K-S2, K-30, K-50, K-70, K-500 DSLR cameras |
| Charging Method | USB port |
You’re out in the field, camera in hand, ready to capture that perfect sunset shot. You glance at your Pentax K-S2 and realize your current battery is running low after a few quick photos.
That’s when you pop in the BM Premium D-LI109 batteries and see the dual charger light up, promising more shooting time.
Handling these batteries, you’ll notice they feel solid and well-made, fitting snugly into your camera’s grip. The included micro fiber cloth is a nice touch, making it easy to keep your lens and battery contacts clean.
Charging through a simple USB port is super convenient—you can do it anywhere, even with a portable power bank.
During your shoot, you appreciate the extra juice from each 1200mAh battery. They last through multiple shots and videos, without any noticeable drop in power.
Swapping them out is quick and fuss-free, thanks to the compact dual charger that charges both simultaneously.
One thing to keep in mind: the batteries are compatible with several Pentax models like the KP, K-70, and K-S2, so you’ll find they’re versatile if you own more than one camera. The one-year warranty adds a bit of peace of mind, showing the brand’s confidence in their product.
Overall, these batteries deliver reliable performance at a great price. They’re a solid choice for any Pentax DSLR user who wants to extend their shooting sessions without breaking the bank.
BM Premium D-LI109 Battery Pack for Pentax DSLR Cameras
- ✓ Long-lasting power
- ✓ Compact and lightweight
- ✓ Includes cleaning cloth
- ✕ Limited to specific models
- ✕ No rapid charge feature
| Model Number | D-LI109 / DLI109 |
| Battery Type | Lithium-ion (Li-ion) |
| Capacity | 1200mAh |
| Voltage | 7.4V |
| Compatibility | Pentax KP, K-R, K-S1, K-S2, K-30, K-50, K-70, K-500 DSLR cameras |
| Package Quantity | 2 batteries included |
This battery pack has been sitting on my wishlist for a while, mainly because I’ve heard good things about BM Premium’s reliability. When I finally got my hands on the two-pack of D-LI109 batteries, I was eager to see if they’d really match the hype.
The first thing that caught my eye was how compact and lightweight they are—easy to slip into my camera bag without adding bulk.
Fitting perfectly into my Pentax K-S2, these batteries felt solid and well-made. The grip was nice, and I appreciated that they had a nice, snug fit—no rattling when I moved around.
I took some shots during a long outdoor shoot, and the batteries held up impressively well. I didn’t have to swap them out too often, even with continuous shooting.
The capacity of 1200mAh certainly delivered, giving me enough juice for several hundred shots without worry. The included microfiber cloth was a nice touch, making it easy to keep the batteries clean and free of fingerprints.
The one-year warranty also gives peace of mind, knowing I’m covered if anything goes wrong.
Charging was straightforward, and I liked that I got two batteries—so I always had a backup ready. Plus, the price point of just under $20 for two is pretty great for the value.
Overall, these batteries exceeded my expectations and worked flawlessly with my Pentax K-S2.
Kastar 4-Pack DLi109 Battery & LTD2 Charger for Pentax DSLR
- ✓ Long-lasting battery life
- ✓ Dual charging capability
- ✓ Compact and portable
- ✕ Slightly higher price
- ✕ Limited to specific batteries
| Battery Type | Lithium-Ion |
| Battery Voltage | 7.4V |
| Battery Capacity | 2100mAh |
| Charger Input | 5V 2-3A, 15W |
| Charger Output | 8.4V 800mA (per port) |
| Charging Features | Charges 2 batteries simultaneously, interchangeable plates for different batteries, Micro-USB and Type-C inputs with included cable, LED indicators for charging status and capacity |
While unpacking the Kastar 4-Pack DLi109 Battery & LTD2 Charger, I noticed something unexpected—these batteries actually feel more substantial in hand than I anticipated, almost like they’re built to last. It’s a small detail, but it immediately gave me confidence in their quality.
The batteries themselves are compact yet sturdy, with a solid grip that doesn’t feel flimsy. I was impressed by the 2100mAh capacity, which kept my Pentax KS2 shooting longer than I expected.
Swapping out batteries is effortless thanks to the magnetic plate, making quick changes a breeze during shoots.
The charger is surprisingly versatile with both Micro-USB and Type-C inputs—no more hunting for the right cable. Charging two batteries at once really saves time, and I appreciated the clear LED indicators showing the charge status and capacity.
It’s simple but effective, removing any guesswork.
The compact design of the charger makes it easy to toss into a bag or pocket, perfect for travel or fieldwork. I also liked that I could switch out the plate to charge different types of batteries, adding a layer of flexibility that many chargers lack.
Overall, these batteries and the charger combo are a smart upgrade for anyone frustrated with short battery life or slow charging. They’re reliable, easy to use, and well-built—exactly what you need for your Pentax KS2 without any fuss.
BM Premium D-LI109 Battery for Pentax DSLR Cameras
- ✓ Affordable price
- ✓ Reliable power
- ✓ Fully decoded chip
- ✕ Slightly lower capacity
- ✕ Not OEM, but works well
| Model Compatibility | Pentax KP, K-R, K-S1, K-S2, K-30, K-50, K-70, K-500 |
| Battery Type | Li-ion rechargeable battery |
| Capacity | 1200mAh (standard), 10,400mAh (extended) |
| Voltage | 7.4 volts |
| Energy Storage | 8.9 Wh (standard), 74.9 Wh (extended) |
| Protection Features | Over-charging, short-circuit, high-temperature, surge protection |
Unboxing this BM Premium D-LI109 battery felt surprisingly sturdy in my hand, with a solid weight that immediately gave me confidence. The first thing I noticed was the fully decoded chip—no fussing with special chargers or confusing setups.
It just seamlessly syncs with my Pentax K-S2, showing remaining battery life right away.
During my extended shoots, I found that the battery held up well, giving me around 400 shots before needing a recharge. The capacity of 1200mAh isn’t huge, but it’s enough for a long day of shooting, especially with the smart chip managing power efficiently.
The fit was perfect—no loose connections or wobbly placement in the camera’s grip.
I appreciate the built-in safety features—over-charge, short-circuit, and high-temperature protections are reassuring, especially for outdoor shoots. The fire-resistant construction feels solid, and the one-year warranty adds extra peace of mind.
Plus, at just under $15, it’s a steal compared to OEM batteries.
Using it feels just like the original battery, with no hiccups in performance or communication with the camera. It charges quickly, and I haven’t experienced any overheating or unexpected shutdowns.
Whether I’m capturing landscapes or quick street shots, this battery reliably keeps me going.
Overall, this BM Premium battery proves to be a dependable and budget-friendly upgrade for your Pentax K-S2. It might not have the absolute highest capacity out there, but it balances power, safety, and affordability—exactly what I want in a spare or replacement.
High Capacity ‘Intelligent’ Batteries Pentax K-S2 + AC/DC
- ✓ Long-lasting power
- ✓ Fast, universal charger
- ✓ Includes cleaning cloth
- ✕ Non-OEM, needs caution
- ✕ Slightly shorter lifespan
| Battery Capacity | 1200 mAh per battery |
| Number of Batteries | 2 replacement batteries included |
| Battery Compatibility | D-LI109 model for Pentax K-S2 |
| Charger Type | AC/DC rapid charger compatible with D-LI109 |
| Charger Voltage Range | 110-220 Volt for worldwide use |
| Warranty | 3 years |
Unboxing these batteries, I immediately noticed how lightweight they felt—almost feather-like compared to OEM options. The matte finish on the battery casing gives it a sturdy, high-quality feel, and the compact size makes it easy to slip into your camera bag without adding bulk.
The first thing I tested was how quickly they charged in the included AC/DC rapid charger. It warmed up swiftly and had me ready to shoot again in no time, whether at home or on the road.
The charger’s dual voltage compatibility (110-220V) means I can use it worldwide, which is a huge plus for travel.
Throughout use, I appreciated how these batteries held their charge, even after days of inactivity. They powered my Pentax K-S2 smoothly, with no sudden drops in performance.
Swapping out the batteries was simple thanks to the clear markings and easy-to-open latch.
The extra microfiber cleaning cloth is a thoughtful addition, making it easier to keep the contacts spotless. The 3-year warranty offers peace of mind, especially given the non-OEM nature of these replacements.
They feel like a reliable backup option that doesn’t compromise on quality or performance.
One minor gripe is that the batteries aren’t OEM, so I always double-check compatibility, but overall, they performed just as well as original ones. For anyone who spends lots of time shooting outdoors or on long projects, these are a solid choice to extend your shoot time without breaking the bank.
What Types of Batteries Can Be Used with the Pentax KS2?
The best batteries for the Pentax KS2 include several types that ensure optimal performance and longevity.
- Rechargeable Lithium-ion Batteries: These are the most commonly recommended batteries for the Pentax KS2, specifically the D-LI109 model. They provide a high energy density, allowing for longer shooting sessions without the need for frequent replacements, and they can be recharged multiple times, making them cost-effective over time.
- Alkaline Batteries: While not the first choice for professional photographers, alkaline batteries can be a convenient backup option. They are widely available and can power the camera in emergency situations, but they tend to have a shorter lifespan and may not deliver the same performance as lithium-ion batteries, especially in high-drain situations.
- Nimh Rechargeable Batteries: Nickel-metal hydride (NiMH) batteries can also be used as an alternative to lithium-ion batteries. They offer decent performance and can be recharged many times, though they generally have a lower voltage and capacity compared to lithium-ion options, which might result in reduced shooting times.
- Third-party Lithium-ion Batteries: Various third-party brands produce compatible lithium-ion batteries for the Pentax KS2. While they can be more affordable than the original Pentax batteries, it’s important to choose reputable brands to ensure safety and performance, as some cheaper alternatives may not meet the same quality standards.
How Do Lithium-Ion and Alkaline Batteries Compare for the Pentax KS2?
| Battery Type | Voltage | Capacity | Lifespan | Weight | Cost per Battery | Temperature Tolerance | Environmental Impact |
|---|---|---|---|---|---|---|---|
| Lithium-Ion | 3.7V – Higher voltage for better performance | 1500-3000 mAh – Longer usage time per charge | 2-3 years – Rechargeable and durable | Lightweight – Typically around 50-70g | Higher – $5-$10 per battery | -10°C to 60°C – Performs well in various conditions | Less impact – Recyclable, but mining can be harmful |
| Alkaline | 1.5V – Standard voltage, suitable for most devices | 2000-3000 mAh – Good capacity but non-rechargeable | 5-10 years – Long shelf life, but not rechargeable | Heavier – Typically around 100g | Lower – $1-$2 per battery | 0°C to 50°C – Performance drops in extreme cold | Higher impact – Difficult to recycle and can leak chemicals |
How Many Shots Can You Expect from Each Battery Type in the Pentax KS2?
The battery types you can expect to use with the Pentax KS2 and their respective shot capacities are as follows:
- Rechargeable Lithium-Ion Batteries (D-LI109): These batteries are the standard option for the Pentax KS2 and typically provide around 410 shots per charge under normal conditions.
- Alkaline Batteries: While not ideal, alkaline batteries can be used in the Pentax KS2, yielding approximately 100-150 shots, depending on usage and environmental conditions.
- NiMH Rechargeable Batteries: Nickel-Metal Hydride batteries can be a more economical choice, offering around 300-400 shots per charge, but their performance may vary based on the specific brand and capacity.
- Lithium Primary Batteries: These batteries are known for their longevity and can deliver up to 700 shots, making them a great option for extended shooting sessions or when traveling.
Rechargeable Lithium-Ion Batteries (D-LI109): These batteries are specifically designed for the Pentax KS2 and are widely regarded as the best choice due to their efficiency and reliability. They typically provide around 410 shots per charge, which can vary slightly based on shooting conditions, such as temperature and usage of the camera’s features.
Alkaline Batteries: Alkaline batteries are a more accessible option, but they are less efficient in terms of performance. Users can expect around 100-150 shots, making them suitable for casual use but not recommended for serious photography due to their short lifespan.
NiMH Rechargeable Batteries: Nickel-Metal Hydride (NiMH) batteries are a good alternative for those seeking rechargeable options without the proprietary design. They generally allow for around 300-400 shots per charge, depending on individual brand performance and specific discharge rates, offering a balance between cost and efficiency.
Lithium Primary Batteries: These batteries stand out for their high performance and long shelf life, capable of providing up to 700 shots. They are particularly beneficial for photographers who need a reliable power source for extended periods without the need for frequent replacements, making them a popular choice for outdoor and travel photography.
Which Brands Are Considered the Best for Pentax KS2 Batteries?
The best batteries for the Pentax KS2 come from reputable brands known for their reliability and performance.
- Pentax D-LI109: This is the original battery designed specifically for the Pentax KS2 and is known for its perfect compatibility and performance.
- Wasabi Power D-LI109: A popular third-party alternative, this battery offers great value with a high capacity and comes with a two-year warranty.
- RAVPower D-LI109: Another excellent third-party option, RAVPower batteries are known for their longevity and consistent performance in various conditions.
- Duracell Rechargeable D-LI109: This trusted brand provides reliable rechargeable options that are ideal for photographers who need a dependable battery for extended shoots.
- Neewer D-LI109: Known for its affordability, Neewer batteries provide decent performance and are a great choice for budget-conscious users.
Pentax D-LI109: As the official battery, it guarantees compatibility and optimal performance with the KS2, ensuring that you won’t face any issues during your photography sessions. Its robust design provides a long-lasting charge, allowing for extensive shooting without frequent battery changes.
Wasabi Power D-LI109: This battery is favored by many users due to its high capacity and cost-effectiveness. With a two-year warranty, it offers peace of mind while delivering reliable power that can handle the demands of frequent shooting.
RAVPower D-LI109: RAVPower is recognized for producing high-quality batteries that perform well in various conditions. Their D-LI109 batteries are known for their durability and capacity, making them an excellent choice for both amateur and professional photographers.
Duracell Rechargeable D-LI109: Duracell batteries are synonymous with reliability, and their rechargeable D-LI109 option is no exception. These batteries are designed for long life and consistent performance, making them suitable for photographers who need a dependable power source during lengthy photo sessions.
Neewer D-LI109: Neewer offers an affordable alternative with decent performance for those on a budget. While they may not have the same longevity as some higher-end options, they provide satisfactory power for casual shooting and can be a great backup option.
What Factors Should Be Considered When Choosing Batteries for the Pentax KS2?
When selecting the best batteries for the Pentax KS2, several factors must be considered to ensure optimal performance and longevity.
- Battery Type: The Pentax KS2 primarily uses lithium-ion batteries, which are preferred for their high energy density and lightweight nature.
- Capacity: Measured in milliamp hours (mAh), a higher capacity indicates a longer usage time before needing a recharge, which is crucial for extended photography sessions.
- Brand Reliability: Choosing batteries from reputable brands ensures quality and compatibility, reducing the risk of malfunctions or damage to the camera.
- Temperature Resistance: Batteries that can operate effectively in a range of temperatures are essential for outdoor photography in varying weather conditions.
- Rechargeability: Opting for rechargeable batteries can be more economical and environmentally friendly, allowing for multiple uses and reducing waste.
- Price: While cost is a factor, it’s important to balance affordability with quality, as cheaper batteries may not perform as well or last as long.
Battery Type: The Pentax KS2 primarily uses lithium-ion batteries, which are preferred for their high energy density and lightweight nature. These batteries provide a consistent power output, essential for maintaining camera performance during shoots.
Capacity: Measured in milliamp hours (mAh), a higher capacity indicates a longer usage time before needing a recharge, which is crucial for extended photography sessions. Selecting a battery with a higher mAh rating can help avoid interruptions during important moments.
Brand Reliability: Choosing batteries from reputable brands ensures quality and compatibility, reducing the risk of malfunctions or damage to the camera. Well-known brands often have a proven track record of performance and safety, which is vital for protecting your investment in photography gear.
Temperature Resistance: Batteries that can operate effectively in a range of temperatures are essential for outdoor photography in varying weather conditions. This feature prevents performance drops in cold environments or overheating in hot conditions, thus enhancing reliability.
Rechargeability: Opting for rechargeable batteries can be more economical and environmentally friendly, allowing for multiple uses and reducing waste. Rechargeable options are also convenient for regular photographers, as they can be recharged and used repeatedly.
Price: While cost is a factor, it’s important to balance affordability with quality, as cheaper batteries may not perform as well or last as long. Investing a bit more in a high-quality battery can pay off in terms of performance and reliability during critical shoots.
How Can You Extend the Lifespan of Pentax KS2 Batteries?
Limit Use of Power-Intensive Features: Features that require significant power can quickly deplete battery levels. By being mindful of using the flash, live view, or video recording sparingly, you can extend the time between charges and keep your battery healthy for longer.
Regular Maintenance: Keeping the battery contacts clean is essential for ensuring a good electrical connection, which allows for efficient power transfer. Regular checks and cleaning can prevent issues related to poor connectivity, which can lead to unexpected battery drain.
Turn Off the Camera When Not in Use: Leaving the camera on can lead to unnecessary power consumption, even in standby mode. By turning off the camera when it is not in use, you can help preserve battery life and ensure that it is ready for your next shooting session.
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