The best Dog Guard collar battery choice depends on the receiver model and how many spares you want. The listed 2CR1/3N 6V batteries are specified for several Dog Guard receivers, including DG-3000, DG-5000, and DG-9000. The four-pack is a practical choice for keeping replacements on hand, while the five-pack offers the largest listed quantity. A separate PetSafe RFA-188 battery is included below for comparison, but it is not identified as a Dog Guard replacement.
| Product | Best For | Battery Type |
|---|---|---|
| 2CR1/3N 6V Replacement Battery, 4-Pack | Multiple spares | 2CR1/3N, 6V |
| JOXIYECLTL 2CR1/3N Batteries, 5-Pack | Largest listed pack | 2CR1/3N, 6V |
| Aiobuvr 2CR1/3N Receiver Batteries, 4-Pack | Model-specific matching | 2CR1/3N, 6V |
| 2CR1/3N Replacement Battery, 2-Pack | Smaller supply | 2CR1/3N, 6V |
| PETZEE RFA-188 Battery, 6-Pack | Listed PetSafe collars | RFA-188, 3V |
2CR1/3N 6V Replacement Battery, 4-Pack

Best for: Dog owners who want several replacement batteries for compatible fence collars. This 2CR1/3N 6V pack lists support for Pet Stop, Dog Guard, Perimeter Technologies, and eXtreme systems. Named receiver models include Dog Guard DG-3000, DG-5000, and DG-9000, plus PCC-100, PCC-200, PTPIR-003, and PTPFS-003.
The listed capacity is 170 mAh. It was selected because its stated receiver compatibility directly covers several Dog Guard models and its four-count pack provides spares. Check the receiver label and required battery type before ordering; the listing does not establish compatibility with every Dog Guard collar.
JOXIYECLTL 2CR1/3N Batteries, 5-Pack

Best for: Buyers who want the largest listed 2CR1/3N pack. The product specifies 6V batteries with 170 mAh capacity and names Dog Guard DG-3000, DG-5000, and DG-9000 receivers, along with compatible receiver models from other listed fence brands.
It also lists equivalent battery designations, including 4LR44, PX28A, A544, and 476A. That cross-reference can help when checking a manual or the old battery label, but equivalent naming should not replace confirming the required size and voltage. Choose this if you need five batteries; avoid it if your receiver calls for a different battery type.
Aiobuvr 2CR1/3N Receiver Batteries, 4-Pack

Best for: Buyers who want receiver-model compatibility spelled out in the product details. The listing identifies Pet Stop PCC-100 and PCC-200, Dog Guard DG-3000, DG-5000, and DG-9000, and eXtreme PTPIR-003 and PTPFS-003 receivers.
The stated capacity is 170 mAh, and the pack contains four batteries. It was selected for its direct model list and clear 2CR1/3N, 6V specification. The feature information does not provide a guaranteed runtime, so battery life should not be assumed from capacity alone. Verify the exact receiver model before purchase.
2CR1/3N Replacement Battery, 2-Pack

Best for: Owners who prefer a smaller two-battery supply. The listing states 170 mAh capacity and compatibility with Pet Stop, Dog Guard, Perimeter Technologies, and eXtreme systems, including the DG-3000, DG-5000, and DG-9000 receiver series.
It also describes the batteries as leakproof and gives a self-discharge rate of less than 0.5% per year at room temperature in the original package. Those details may matter for stored spares. This product was selected as a lower-quantity alternative to the four- and five-packs. Confirm the collar uses 2CR1/3N 6V batteries before choosing it.
PETZEE RFA-188 Battery, 6-Pack

Best for: Buyers whose collar specifically requires an RFA-188 3V battery. The listed compatible models include several PetSafe PBC, PDT, PIG, and PCF products. This is a different battery designation and voltage from the 2CR1/3N 6V options above.
It is included as a useful distinction for shoppers searching broadly for dog collar batteries, not as a confirmed Dog Guard replacement. Do not choose it for a Dog Guard receiver unless the receiver documentation explicitly calls for RFA-188. The listed features name compatible model numbers but do not claim compatibility with Dog Guard systems.
Buying Guide: How To Choose A Dog Guard Collar Battery
Which battery type does the receiver require?
Start with the receiver label, owner’s manual, or existing battery. The Dog Guard products here list 2CR1/3N at 6V. The PETZEE option is RFA-188 at 3V, so it is not interchangeable based on these product details. Match both the battery designation and voltage rather than relying only on a general search term.
How can you check model compatibility?
Compare the full receiver model number against the product’s compatibility list. The listed 2CR1/3N options name DG-3000, DG-5000, and DG-9000 receivers. If your model is not listed, confirm compatibility with the system documentation or manufacturer before buying.
Should you choose a two-, four-, or five-pack?
A two-pack suits buyers seeking a smaller supply. Four- and five-packs provide more replacements to keep available. Pack size alone does not establish battery life or value; consider how many collars or replacements you need and how you plan to store unused batteries.
Does a higher capacity guarantee longer runtime?
The 2CR1/3N listings state 170 mAh, but they do not provide a guaranteed operating duration. Actual runtime should not be inferred from capacity alone. Follow the collar manufacturer’s battery-change guidance and monitor the receiver as instructed.
Frequently Asked Questions
What battery type is listed for Dog Guard DG-3000 collars?
The products in this selection list 2CR1/3N 6V batteries for the DG-3000 receiver. Verify the exact receiver and battery label before ordering.
Are 2CR1/3N and RFA-188 batteries the same?
No. The listed 2CR1/3N batteries are 6V, while the PETZEE RFA-188 is listed as 3V. The product details do not identify them as interchangeable.
Which option includes the most 2CR1/3N batteries?
The JOXIYECLTL product is listed as a five-pack, the largest 2CR1/3N quantity among these options.
Can I use any 2CR1/3N battery in a Dog Guard receiver?
Do not assume that every battery with a similar designation is suitable. Check the receiver’s required type, voltage, and model compatibility before purchase.