Very often treasure hunters do not know what batteries are better to buy for their metal detector. In new metal detectors (such as Minelab Equinox, XP Deus, Quest and etc.) use built-in batteries, but there are metal detectors (like updated Garrett ACE Series) that using AA batteries.
TOP 5 Best Metal Detector Batteries
Table of Contents
There are some metal detectors that equipped with special batteries, which are already included in the kit, but often most the metal detector comes with conventional batteries. At first, you can use them, but for long and productive detecting better to get more reliable batteries.
Batteries have different types:
- Salt Batteries are the cheapest and the worst batteries for metal detecting, so better to discard this type immediately.
- Alkaline Batteries are the most popular type of batteries, but they have one significant drawback. It’s a large internal resistance because of what they serve much less than other types of batteries. Also, Alkaline Batteries have poor performance at low temperature, which can adversely affect on metal detecting in cold weather or even harm your metal detector!
- Lithium Batteries don’t have these drawbacks but they are more expensive much less common. Their price is too high, and it is better to buy more reliable batteries with this money.
- Nickel-Cadmium Batteries (NI-CD) are the most affordable and have re-charging limit (up to 1000 times). They do not afraid of cold temperature and perfectly cope with high discharge currents, but they have a low capacity and quickly discharged. The main disadvantage of Nickel-Cadmium Batteries is the ability to “remember” the previous charging level, and if they were not fully charged, their capacity is reduced accordingly.
- One of the best types of batteries for the metal detector is Nickel-Metal Hydride Batteries (NI-MN). Their capacity compared with Nickel-Cadmium but it is higher in 2-3 times, but they also can reduce their capacity due to difficult weather conditions, such as low temperature. For long-term metal detecting is better to choose a powerful battery capacity of more than 2000-2500mAH.
TOP 3 Best Battery Chargers
3 Useful Tips
- Before going to metal detecting you should always check the battery level, even if they were pre-fully charged.
- You must remember that batteries can tend to self-discharge about 10-25% per week. There are some batteries with a lower level of self-discharge (about 10-15%), but their capacity is also less. It’s better to use them like a spare kit.
- And the main thing. Good batteries are the key to success. I think that you will not be very happy if your metal detector will stop working at the most inopportune moment?