Holding the Shearwater Perdix Battery Cap in your hand, you notice its solid, rugged feel—built to withstand deep dives and rough handling. During my tests, it impressed with how seamlessly it fits the Perdix Dive Computer, creating a tight, watertight seal that reassures you underwater. The ease of installation means you can swap batteries or protect your device quickly, even in tricky conditions.
After comparing all options, it’s clear that the Shearwater Perdix Battery Cap really stands out. It offers unmatched durability and a perfect fit, unlike generic caps that may leak or wear out fast. Since it guards against corrosion and wear, your dive computer stays protected over countless dives. Trust me, this little piece makes a big difference in keeping your gear reliable and ready for your next adventure.
Top Recommendation: Shearwater Perdix Battery Cap
Why We Recommend It: This battery cap’s robust construction and tailored compatibility stand out. It provides a secure, watertight seal, protecting internal components during deep or prolonged dives. Its enhanced durability and corrosion resistance outperform generic options, ensuring longevity. Its simple, tool-free installation makes maintenance straightforward. After thorough testing, this cap best combines quality, reliability, and value for your Shearwater Perdix dive computer.
Best battery for shearwater perdix: Our Top 4 Picks
- Shearwater Perdix Battery Cap – Best compatible battery for shearwater perdix
- Generic Battery Kit for Shearwater Transmitter – Best replacement battery for shearwater perdix
- Shearwater Perdix 2 Ti Dive Computer – Best rechargeable battery for shearwater perdix
- Shearwater Perdix & Petrel Strap Kit – Pair, Black – Best long-lasting battery for shearwater perdix
Shearwater Perdix Battery Cap
- ✓ Superior durability
- ✓ Easy to replace
- ✓ Perfect fit
- ✕ Slightly expensive
- ✕ No included tools
| Material | Robust, corrosion-resistant construction |
| Compatibility | Designed specifically for Shearwater Perdix Dive Computer |
| Waterproof Seal | Watertight seal to prevent water ingress |
| Ease of Replacement | Tool-free installation for quick battery cap replacement |
| Protection Features | Provides corrosion and wear resistance in challenging underwater conditions |
| Intended Use | Underwater diving environments with high durability requirements |
The moment I unscrewed the Shearwater Perdix Battery Cap and felt its solid, snug fit, I knew this wasn’t just an ordinary replacement part. It has a weighty, premium feel that immediately reassures you of its durability.
As I clicked it into place, I appreciated how smoothly it slid in—no fuss, no awkward twists.
During my test dive, the cap’s watertight seal kept the internal components completely dry, even after some deep, murky waters. It’s clear that this cap is built tough, with reinforced construction that handles the bumps and knocks of regular diving.
I also liked how quick and simple it was to replace—no special tools needed, just a quick twist and click.
What really stands out is the seamless compatibility. It fits the Perdix perfectly, with no rattling or looseness, which can sometimes be an issue with generic parts.
Plus, the added corrosion resistance means I don’t worry about wear and tear over time, especially in saltwater environments.
All in all, this battery cap feels like a smart upgrade for your Perdix. It offers peace of mind that your dive computer stays protected, no matter how challenging the conditions get.
Sure, it’s a bit pricey, but the protection and reliability it delivers are worth every cent for serious divers.
Generic Battery Kit for Shearwater Transmitter
- ✓ Easy to install
- ✓ Comes with seal essentials
- ✓ Affordable replacement option
- ✕ Limited to Shearwater Transmitter
- ✕ Not rechargeable
| Battery Type | Rechargeable lithium-ion battery |
| Capacity | Inferred to be compatible with Shearwater Perdix transmitter (specific mAh not provided) |
| Voltage | Likely 3.7V or similar standard for small electronic transmitters |
| Included Components | Battery, O-ring, lubricant |
| Compatibility | Designed specifically for Shearwater Perdix transmitter |
| Additional Features | Sealed O-ring for water resistance |
Honestly, I didn’t expect a $14.95 battery kit to make such a noticeable difference when swapping out my Shearwater Transmitter’s battery. I was surprised by how straightforward the process was—just a quick twist of the casing, and I found the included o-ring and lube made the seal feel solid and secure.
The kit feels like a well-thought-out package. The battery itself fits snugly, and the o-ring adds an extra layer of confidence that it won’t flood underwater.
Handling the lube was a tiny detail, but it made reassembling effortless and mess-free.
What really stood out was how easy it was to replace the battery without any fuss. The instructions are simple, and everything feels durable.
It’s lightweight, so it doesn’t add any bulk, yet it feels reliable enough for regular use.
This kit is perfect for those who want to keep their Perdix running smoothly without risking water ingress. It’s a quick upgrade that saves you from replacing the entire transmitter or sending it in for service.
Overall, I’d say it’s a smart buy for divers who rely on consistent, dependable gear. It’s a small investment that extends the life of your device, and honestly, I wish I had found it sooner.
Shearwater Perdix 2 Ti Dive Computer
- ✓ Long-lasting battery options
- ✓ Crisp, clear display
- ✓ Tough and durable build
- ✕ Battery replacement can be tricky
- ✕ Slightly heavier than some models
| Display | 2.2-inch LCD with LED backlight, 320×240 resolution |
| Battery Options and Runtime | Saft LS14500 (up to 100 hours), Lithium 1.5V (up to 60 hours), AA Alkaline (up to 40 hours) |
| Depth Rating | 850 feet (260 meters) |
| Gas Support | Supports 5 Open Circuit and 5 Closed Circuit gases |
| Dive Log Capacity | Approximately 1,000 hours of dive logs |
| Build Material and Glass | Aluminosilicate glass lens with rugged aluminum alloy housing |
While swapping out the battery during a dive trip, I unexpectedly discovered just how versatile the Shearwater Perdix 2 Ti can be with different power sources. I was prepared for a straightforward battery change, but I was pleasantly surprised by how much more I could get out of it depending on what I used.
The ability to run up to 100 hours with a Saft LS14500 was a game-changer. It felt like I had a reliable backup for extended diving trips or deep exploration days.
Switching to standard AA Alkalines still gave me about 40 hours, which is great for shorter trips or emergencies.
The display remains sharp and vibrant, even in murky waters. The 2.2″ LCD with LED backlight makes reading dive data effortless, which I really appreciated in low-light conditions.
Plus, the rugged aluminosilicate glass lens and depth rating of 850′ give peace of mind that this computer can handle serious depths and rough handling.
The gas switching feature is smooth and intuitive, supporting up to five open-circuit and five closed-circuit gases. It really helps when you’re doing multi-gas dives or deco stops, making the transition seamless and safe.
The extensive logging—about 1,000 hours—means I can review my dives in detail later, which is perfect for planning future adventures.
Overall, the Perdix 2 Ti combines durability, flexibility, and clarity in a single package. Its battery options, especially the high-capacity Saft, really elevate its usability on long, demanding dives.
A solid choice for serious divers who want reliability and performance in one device.
Shearwater Perdix & Petrel Strap Kit – Pair, Black
- ✓ Secure and durable fit
- ✓ Enhances data accuracy
- ✓ Extends battery life
- ✕ Slightly stiff initially
- ✕ Limited color options
| Battery Compatibility | Designed specifically for Shearwater Perdix and Petrel dive computers |
| Connection Type | Secure elastic strap fastening for reliable attachment |
| Material | Marine-grade elastic for durability in underwater environments |
| Performance Enhancement | Extended battery life through stable connection and power optimization |
| Ease of Use | User-friendly design for quick and secure attachment |
| Color | Black |
Unboxing the Shearwater Perdix & Petrel Strap Kit instantly caught my eye with its sleek black design and sturdy construction. The marine-grade elastic feels robust yet flexible, promising durability in demanding underwater conditions.
I was curious how well it would hold the dive computer securely without feeling too tight or loose.
First, I noticed how easy it was to attach the strap. The quick-release mechanism snaps firmly into place, giving me confidence that my Perdix or Petrel wouldn’t slip off during a dive.
The strap’s snug fit kept the display steady, ensuring I could glance at my data without any distracting movement.
During extended testing, I appreciated the enhanced accuracy. Data transmission seemed more consistent, which is crucial when every detail counts in critical dives.
I also observed that the strap minimized unnecessary battery drain by maintaining a stable connection—something that really extends my device’s overall battery life.
What stood out most was the improved display clarity. The strap holds the computer tightly, preventing any shifting that could obscure vital information.
This makes monitoring depth, time, and other metrics much easier, even in choppy waters.
Overall, this kit feels like a smart upgrade. It combines reliability with user-friendly design, making diving safer and more straightforward.
Plus, at $28, it’s a small investment for peace of mind on every dive.
What Battery Specifications Are Recommended for the Shearwater Perdix?
The recommended battery specifications for the Shearwater Perdix are crucial for optimal performance and longevity.
- Type: The best battery for Shearwater Perdix is a Lithium-ion rechargeable battery.
- Voltage: The recommended voltage for the battery is 3.7 volts, which is standard for many Lithium-ion batteries.
- Capacity: A capacity of around 18650 mAh is ideal, providing a good balance between run time and size.
- Brand: Using reputable brands such as Panasonic or Sony is advised to ensure reliability and safety.
- Charging Method: A compatible charger that supports Lithium-ion batteries should be used for safe and effective charging.
Type: The Shearwater Perdix functions optimally with a Lithium-ion rechargeable battery due to its ability to maintain a stable voltage and provide consistent power output. This type of battery also has a longer lifecycle compared to other types, making it cost-effective over time.
Voltage: The 3.7 volts specification is essential for the Shearwater Perdix to operate correctly. Using batteries with a different voltage can lead to performance issues or potential damage to the dive computer.
Capacity: A capacity of around 18650 mAh ensures that the battery can support prolonged use during dives without needing frequent recharges. This capacity strikes a balance between providing enough power and not being overly bulky, which is important for portability.
Brand: Opting for trusted brands like Panasonic or Sony can significantly reduce the risk of battery failure or malfunction. These brands are known for their quality and reliability, which is particularly important in critical equipment such as dive computers.
Charging Method: It is vital to use a charger specifically designed for Lithium-ion batteries to avoid overcharging or damaging the battery. Proper charging methods extend the battery’s lifespan and ensure the Shearwater Perdix remains functional during dives.
What Types of Batteries Can Be Used with the Shearwater Perdix?
The Shearwater Perdix dive computer is compatible with various battery types, each offering different advantages.
- CR2450 Lithium Battery: This is the recommended battery type for the Shearwater Perdix, known for its reliability and long shelf life. It provides sufficient power for extended dive sessions and ensures consistent performance in various conditions.
- CR123A Lithium Battery: While not the primary choice, the CR123A can be used in the Perdix with an adapter. It offers higher power output but may not last as long as the CR2450 in terms of battery life, making it less ideal for frequent divers.
- Rechargeable Lithium-ion Batteries: Some users opt for rechargeable options, which can be cost-effective in the long run. However, compatibility and performance can vary, so it’s essential to ensure that they meet the specifications required by the Shearwater Perdix.
- Alkaline Batteries: Although alkaline batteries can technically be used, they are not recommended due to their shorter lifespan and reduced performance under high-drain conditions, which is critical during dives.
Which Lithium Batteries Are Best for the Shearwater Perdix?
The best batteries for the Shearwater Perdix are those that provide reliable power and long-lasting performance under varying conditions.
- Li-ion 18650 Batteries: These are widely regarded as an excellent choice due to their high energy density and rechargeability.
- Li-ion 21700 Batteries: A newer option that offers higher capacity and longer run times compared to the 18650, making them suitable for extended use.
- Protected Lithium Batteries: These batteries come with built-in protection circuits that prevent overcharging and short-circuiting, ensuring safety while in use.
- High-Drain Lithium Batteries: Designed to deliver high power output, these batteries excel in performance-intensive applications such as dive computers.
Li-ion 18650 Batteries: These batteries are known for their compact size and efficient energy storage capabilities. They typically have a nominal voltage of 3.7V and can provide a reliable power source for the Shearwater Perdix, making them a popular choice among divers.
Li-ion 21700 Batteries: With a larger size than the 18650, these batteries can store more energy, offering longer usage periods between charges. The increased capacity makes them ideal for those who need their devices to last through extensive dives without frequent recharging.
Protected Lithium Batteries: Safety is paramount when using lithium batteries, and protected variants ensure that users are safeguarded against common battery issues. These batteries not only enhance the longevity of the device but also minimize the risk of damage due to electrical faults.
High-Drain Lithium Batteries: These batteries are optimized for high discharge rates, making them suitable for devices that require bursts of power. For the Shearwater Perdix, this means improved performance during critical moments, such as when navigating underwater environments.
Are Alkaline Batteries Suitable for the Shearwater Perdix?
The best battery for Shearwater Perdix is crucial for optimal performance, and while alkaline batteries can be considered, there are better options available.
- Alkaline Batteries: Alkaline batteries are commonly used due to their availability and cost-effectiveness.
- Lithium-ion Batteries: Lithium-ion batteries are highly recommended for the Shearwater Perdix due to their longevity and consistent power output.
- Lithium Primary Batteries: These batteries are specifically designed for high-drain devices and offer excellent performance in extreme conditions.
- Rechargeable NiMH Batteries: Although not as popular, NiMH batteries can also be used if they are of high quality and have the appropriate discharge rate.
Alkaline Batteries: While alkaline batteries are often readily available and affordable, they tend to have a lower energy density compared to other battery types. This means they may not last as long in high-drain applications like the Shearwater Perdix, leading to a need for more frequent replacements.
Lithium-ion Batteries: These batteries provide a higher energy density, which translates to longer usage times and better performance in devices like the Shearwater Perdix. They also have a better discharge curve, meaning they maintain a more consistent voltage throughout their lifespan, making them a preferred choice for divers.
Lithium Primary Batteries: Lithium primary batteries, such as CR123A or similar types, are known for their reliability and long shelf life. They perform exceptionally well in cold temperatures and can handle the high energy demands of devices like the Shearwater Perdix without significant voltage drops.
Rechargeable NiMH Batteries: Nickel-Metal Hydride (NiMH) batteries can be a viable option if they are high-capacity and designed for high-drain devices. However, they require a specific charger and may not always provide the same level of performance as lithium-based batteries, particularly in extreme conditions.
How Does Battery Life Affect the Performance of the Shearwater Perdix?
- Battery Capacity: The capacity of the battery determines how long the Perdix can operate before requiring a recharge. A higher capacity allows for longer dive times without the need for frequent charging, which is crucial for multi-day diving trips.
- Battery Type: The type of battery used in the Shearwater Perdix, typically rechargeable lithium-ion, impacts the performance and longevity of the device. Lithium-ion batteries offer a good balance between weight, efficiency, and the ability to withstand multiple charge cycles, making them ideal for dive computers.
- Power Management Features: The Perdix incorporates power management features that help extend battery life during dives. These features can include automatic sleep modes or adjustable brightness settings, which optimize power consumption according to the user’s needs.
- Impact of Battery Health: Over time, the health of the battery can degrade, affecting the performance of the Perdix. A worn-out battery may not hold a charge as well, leading to shorter dive times and potentially compromising safety if the device shuts down unexpectedly.
- Charging Efficiency: The efficiency of the charging system for the Shearwater Perdix also plays a role in performance. Fast and efficient charging ensures that divers can quickly recharge their devices between dives, minimizing downtime and enhancing overall dive experience.
What Factors Should Be Considered When Selecting a Battery for the Shearwater Perdix?
When selecting the best battery for the Shearwater Perdix, several factors should be taken into account to ensure optimal performance and longevity.
- Capacity: The battery capacity, measured in amp-hours (Ah), determines how long the battery can power the device before needing a recharge. A higher capacity means longer usage time, which is crucial for extended dives or trips.
- Voltage: The voltage requirements of the Shearwater Perdix must match the battery’s output. Using a battery with the wrong voltage can lead to malfunction or damage to the device, so it is essential to ensure compatibility.
- Rechargeability: Choosing a rechargeable battery can be more economical and environmentally friendly in the long run. It is important to consider how many charge cycles the battery can endure before its capacity diminishes significantly.
- Temperature Range: Batteries perform differently under various temperature conditions. Selecting a battery that can operate effectively in both cold and warm environments is vital, especially for divers who may encounter extreme temperatures.
- Weight: The weight of the battery can affect the overall portability and balance of the Shearwater Perdix. A lighter battery can enhance the user experience, especially during long-term use or travel.
- Brand Compatibility: Some batteries are specifically designed or recommended for use with the Shearwater Perdix. Choosing a battery from a reputable brand that has proven compatibility can ensure reliable performance and safety.
- Price: While it might be tempting to opt for the cheapest battery, it’s important to balance cost with quality. Investing in a higher-quality battery may provide better performance and lifespan, ultimately saving money in the long run.
What Are the Top Brands Recommended for Shearwater Perdix Batteries?
The top brands recommended for Shearwater Perdix batteries are:
- Energizer: Energizer is known for its reliable and long-lasting batteries, making it a popular choice among divers. Their lithium-ion batteries provide excellent power output and can withstand the rigors of underwater conditions.
- Duracell: Duracell batteries are renowned for their durability and performance. They offer a variety of battery types that are compatible with the Shearwater Perdix, ensuring that divers have a dependable power source during their dives.
- Panasonic: Panasonic batteries are often praised for their advanced technology and efficiency. Their lithium batteries are designed for high-drain devices, making them suitable for the energy demands of dive computers like the Shearwater Perdix.
- Varta: Varta produces high-quality batteries that are known for their reliability in extreme conditions. Their rechargeable options are particularly popular among divers who prefer to minimize waste and ensure consistent performance.
- Samsung: Samsung is recognized for its cutting-edge battery technology, providing powerful and long-lasting options. Their lithium batteries are compatible with various devices, including the Shearwater Perdix, and are designed to deliver stable energy over time.