Rangefinder Battery Types: Which is Best for Your Needs? Complete Guide

Have you been searching for the right battery type for your rangefinder? You can find the perfect option with our complete guide to rangefinder battery types.

By understanding the differences between lithium and alkaline batteries, you can make sure you have enough power for your next hunt.

Make sure to read on to ensure you get the best performance from your rangefinder!


Welcome to our comprehensive guide on batteries for the rangefinder. Here we’ll delve into the various types and features of battery technologies that are used in rangefinders and help you to decide which is best for your individual needs.

We will cover primary battery types such as alkaline, lithium, silver-oxide, and nickel-metal hydride (NiMH); provide a quick rundown of rechargeable lithium-ion and other various types; discuss factors like shelf life, size, and weight; compare performance of Li-ion vs alkaline; dive into battery safety; and more!

Whether you’re a novice who is just starting out or an experienced enthusiast upgrading their current rangefinder, our goal is to provide all the information you need to make an informed decision. Let’s get started with an overview of each type of battery so you can determine which one might be best for your rangefinder.

Explanation of what a rangefinder is

A rangefinder is a sophisticated device that uses laser technology to measure the distance between two objects. It usually consists of two main components: an optical unit and a control unit. The optical unit projects a laser beam that reflects off the target, while the control unit translates the reflections back into distance measurements. Rangefinders are commonly used in a variety of industries and applications, such as hunting, golfing, surveying, construction and photography.

They come in several types: hand-held rangefinders, mounted rangefinders, binoculars with integrated rangefinders and smartphone-based rangefinders. All of these devices rely on precision optics to project an invisible light beam towards an object or person within its line of sight. Rangefinders may be powered by either disposable or rechargeable batteries; some also have solar-powered capability. The type of battery you choose will depend on your individual needs and preferences when it comes to powering your device. In this guide we’ll discuss the various types of batteries used in rangefinder devices and how they each offer unique advantages for different users.

Types of Batteries

When it comes to rangefinder batteries, you have a few different options. Knowing what types of battery to use for your exact needs is essential for getting the most out of your rangefinder. This guide will help you determine which type of battery is best for your rangefinder.

CR2 Batteries: These batteries are typically found in high-end rangefinders because they are more reliable and offer more power than other more traditional battery types. They can also last up to five times longer than traditional AA or AAA batteries, making them the go-to choice for those who want their equipment to last as long as possible.

AAA or AA Batteries: For entry-level rangefinders, these types of batteries may be the way to go. They can be easily replaced and provide enough power to get the job done. However, they won’t last as long as CR2 batteries and aren’t recommended for professionals or serious hobbyists who need their equipment on a regular basis.

Lithium-ion Batteries: If you’re looking for a longer lasting option but don’t want to use CR2 batteries, then lithium-ion batteries are your best bet. These rechargeable batteries can be used multiple times and offer the same performance levels that CR2 models do without needing to be replaced every few months or years like disposable models do. Plus, they’re usually lighter in weight which makes them easier to carry around in your bag when you’re exploring outdoors.

Alkaline Batteries

Alkaline batteries are the most common type of battery used in rangefinders. They offer reliable, consistent power and are typically inexpensive. Alkaline batteries hold their charge for long periods of time making them the most often recommended choice for rangefinder use.

Some concerns with alkaline batteries include their shorter life span and potential “memory effect” if you don’t discharge them completely before recharging. However, these issues can be avoided with proper care and maintenance.

Furthermore, many models of rangefinders now come with rechargeable alkaline batteries which help to offset some of these concerns.

Factors to Consider When Choosing a Battery

When choosing a battery for your rangefinder, there are several factors to consider:

  1. Capacity and Size – Rangefinders use anywhere from 1-3 cells of battery. You should consider size and shape as some rangefinders require specific sizes and shapes.
  2. Voltage – Most rangefinders run on a 3V or 6V power source. If you have an older model that requires more than 6V, then you may need to look for other options such as external battery packs or rechargeable batteries.
  3. Weight – The weight of the battery is an important factor because most rangefinders can only handle small amounts of weight which can affect accuracy when shooting outdoors or in difficult terrain. Look for lightweight yet powerful batteries to reduce the strain on your device and improve performance in these scenarios.
  4. Rechargeability – Rechargeable batteries are an ideal choice for those who plan on using their rangefinder for extended periods of time without having to frequently replace the batteries. Make sure that the charger you use is compatible with your particular brand, model and voltage requirements before buying a new set of rechargeable batteries to avoid any potential issues down the road!
  5. Compatibility – Ensure that whatever type of battery you choose is compatible with both your rangefinder’s make and model as well as voltage requirements so that you don’t experience any issues regarding compatibility later down the road!


Rechargeable batteries come with a cost associated with them – either up-front or over time. This can depend on the type of rechargeable battery you choose, its range and its energy efficiency.

You should first look at the average cost per charge for a specific battery type and compare it to the cost of alkaline batteries. Keep in mind that rechargeable batteries have many advantages, including being used multiple times and also disposing of fewer batteries overall, which is usually cheaper in the long run.

Additionally, look closely at your budget to determine which type best fits your needs when considering purchasing a recharger and extra batteries. Consider any warranties that come with individual models that you may be considering as well as their expected lifetimes before replacement. Also keep in mind any special charging requirements needed for some rechargeable types, such as li-ion or nickel-metal hydride (NiMH).

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Choosing the Right Battery

Before you buy a rangefinder, you need to know how it works and what type of battery it needs. Each rangefinder has different battery requirements, but the most common types of batteries include lithium-ion (Li-ion), nickel-metal hydride (NiMH), alkaline, and silver.

Each type has its own advantages and disadvantages for powering rangefinders. Here’s a quick overview of the different types:

Lithium-Ion (Li-Ion) Batteries: These are the best option when it comes to rangefinder batteries. Li-ion batteries are lightweight, expensive, but have good performance and long life span making them ideal for portable devices. As with any battery tech, Li-ion requires care with proper charging and avoid extreme temperatures.

Nickel-Metal Hydride (NiMH) Batteries: NiMH is the second most popular choice when it comes to rangefinder batteries. NiMH batteries can typically be recharged hundreds times without losing their efficiency while being reasonably priced. The downside to these types of batteries is that they tend to be bulkier than Li-Ion ones, making them less desirable for some people as space can be limited in some models of rangefinders.

Alkaline Batteries are often used in non rechargeable kind of devices like cameras, flashlights etc… Alkaline cells provide satisfactory performance for short bursts but cannot be reliably used for longer periods and require constant replacement once drained. They also tend to have shorter shelf lives than other kinds lead acid or carbonzinc types so often times these have to be bought directly from the brands themselves as their quality is hard to gauge otherwise especially when buying from generic sources.

Silver Oxide Batteries are most commonly used in watches, thermometers etc where providing accurate readings over prolonged periods is required since they last longer than other battery technologies due their high energy density. The higher cost however limits the widespread use that these kinds, otherwise due there superior capacity and capability might enjoy.

Determining your needs

When it comes to selecting the right battery type for your rangefinder, it is important to consider the specific uses and conditions of your device. Do you need a more powerful battery that can take on heavy-duty jobs or can a basic option suffice? Knowing your needs will help you make an informed decision.

The outputs of each type of battery vary significantly which makes it even more important for you to determine exactly what type of power output best suits your rangefinder. Some batteries may be suitable for everyday use, while others are made specifically for harsh weather conditions or higher power outputs. It is also important to note that some batteries require special chargers, so ensure you purchase one designed for the model or brand of rangefinder that you own.

When deciding which sort of battery is best for your needs, consider the following factors:

  • Voltage rating: Higher voltage ratings are usually required for intense activities such as mountaineering or hunting where rangefinders must be accurate at long distances in windy conditions.
  • Maximum capacity: Batteries with high maximum capacities are often recommended as they provide better performance in extended uses like surveying and construction projects which require numerous readings over time.
  • Size & weight: Smaller, lightweight batteries may be preferable if you plan on using the device during activities such as hiking or backpacking where mobility and portability are essential factors.
  • Durability: If you plan on using the device in rugged environments or harsh conditions, look out for durable construction materials such as lithium metal and premium sealed cells that can protect against extreme temperatures and impact drops.

Battery Maintenance Tips

Keeping your rangefinder battery in top condition will help ensure you get the most out of it and make sure it lasts for as long as possible. Here are some tips on proper battery maintenance:

  1. Regularly clean the contacts: This includes both the connections from the battery to the device and from the charger to the device. Use a dry, soft cloth to avoid damaging these links.
  2. Keep batteries away from extreme temperatures: Excessive heat can damage internal components, while cold temperatures can reduce current flow due to reduced chemical activity. In general, it’s best to store and use rangefinder batteries in temperatures between 0-35 degrees Celsius (32-95F).
  3. Avoid short circuiting or overcharging: These actions can cause irreparable damage to your battery cells and will effectively render them unusable – so be sure to unplug your device when not in use and keep an eye out for full charge indications when recharging — especially important for lithium offers!
  4. Upgrade firmware frequently: Device developers will sometimes release firmware updates that improve battery life; make sure you keep up with any new releases offered by your device maker in order to get optimal results!


When it comes to selecting the right battery type for your rangefinder, there are several considerations to weigh, including storage capacity and recharging requirements. One of the most popular types of battery to power a rangefinder is a rechargeable lithium-ion battery. Lithium-ion batteries offer a range of benefits due to their high energy density, low self-discharge rate and stable voltage output. These batteries are typically rated in milliampere hours (mAh), which indicates the capacity or run time of the battery when fully charged.

Storage can also be an important factor––some batteries come with a memory effect, which means that if you do not completely empty a single charge before recharging it begins to lose capacity over multiple cycles and take longer to charge. To maximize your rangefinder’s performance, it’s important to remember that when lithium ion batteries are stored for long periods of time (more than 6 months) they should be charged intermittently every 3 months at 40% capacity.



As you can see, there is a wide variety of battery types that can be used in your rangefinder device. Each type of battery has its own advantages and limitations, and the one that is best for your needs will depend on how you plan to use the device. Most modern rangefinder devices are powered by rechargeable lithium ion or NiMH batteries, as these offer long life, high power density, and excellent performance.

No matter which type of battery you choose for your rangefinder device, make sure it is compatible with the device and you follow all manufacturer instructions regarding charging, storage and usage. Properly administering your battery should provide years of service from whatever type you choose.

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