Dogtra BP37W replacement battery for Arc StarWalk vs Dogtra BPRR Battery 7.2V 700mAh - Compatible Replacement
Buy the BP37W if you own an ARC800, ARC800 Free Plus receiver or ARC802 and want the exact 3.7V lithium-polymer pack. Buy the BPRR only if your Dogtra receiver calls for a 7.2V NiMH pack, since the two are not interchangeable. The BP37W has ranged from $11.95 to $19.99 in early November 2026; no current price was given for the BPRR.
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Dogtra BP37W replacement battery for Arc StarWalk
Choose the BP37W if your receiver is an ARC800, ARC800 Free Plus or ARC802 and needs the 3.7V, 280mAh lithium-polymer pack.
Pros
- Exact fit for ARC800, ARC800 Free Plus and ARC802 receivers
- Lithium polymer holds charge well between uses
- Low price, under $20 across the early November range
Cons
- Only 280mAh, so shorter runtime per charge
- Fits a narrow set of Dogtra receivers
- No dimensions or weight listed to check fit
What separates them
| Dogtra BP37W replacement battery for Arc StarWalk | Dogtra BPRR Battery 7.2V 700mAh - Compatible Replacement | |
|---|---|---|
| Voltage | 3.7V | 7.2V |
| Capacity | 280mAh | 700mAh |
| Chemistry | Lithium polymer | NiMH |
| Listed compatibility | ARC800, ARC800 Free Plus receiver, ARC802 | Not stated |
| Weight | Not stated | 72g (2.54oz) |
| Dimensions | Not stated | 45.5 x 30.9 x 20.5mm |
| Terminals | Not stated | Connector |
| Price | $11.95 to $19.99 in early November 2026 | Not given |
Price history
$39.49$11.95
- Dogtra BP37W replacement battery for Arc StarWalk: lowest $11.95 on Nov 1 at Amazon; $19.99 on Nov 2.
- Dogtra BPRR Battery 7.2V 700mAh - Compatible Replacement: lowest $39.49 on Nov 1 at Amazon.
Prices at every store
Dogtra BP37W replacement battery for Arc StarWalk
- AmazonCheck price at Amazon
- Buy and Sell Hunting DogsCheck price at Buy and Sell Hunting Dogs
- eBayCheck price at eBay
Dogtra BPRR Battery 7.2V 700mAh - Compatible Replacement
- AmazonCheck price at Amazon
Specs compared
| Spec | Dogtra BP37W replacement battery for Arc StarWalk | Dogtra BPRR Battery 7.2V 700mAh - Compatible Replacement |
|---|---|---|
| Battery Capacity | 280MAH | — |
| Battery Voltage | 3.7v | — |
| Battery Chemistry Type | Lithium Polymer | — |
| Compatible Brand | Dogtra | — |
| Compatible Devices | ARC800, ARC800 Free Plus Receiver, ARC802 | — |
| Compatible Model | BP37W | — |
| Compatible Device Type | Receiver | — |
| Material | Lithium Polymer | — |
| Voltage | — | 7.2 Volt |
| Capacity | — | 700mAh |
Questions and answers
- Will the BP37W fit my ARC800?
- Yes. Dogtra lists the BP37W as compatible with the ARC800, ARC800 Free Plus receiver and ARC802. It is a 3.7V, 280mAh lithium-polymer pack.
- Can I use the BPRR in an ARC800?
- No. The BPRR is 7.2V and the ARC800 takes a 3.7V pack. Using the wrong voltage can damage the receiver.
- Which battery lasts longer per charge?
- The BPRR, at 700mAh versus 280mAh for the BP37W. That is roughly 2.5 times the capacity, though runtime depends on the device.
- Is the BP37W worth the price?
- It is cheap, ranging from $11.95 to $19.99 in early November 2026. If it is the pack your receiver takes, there is little reason to pay more.
- Do the two batteries use the same charger?
- No. Lithium polymer and NiMH need different charging, and the voltages differ. Use the charger made for your receiver's pack.
- Which is better for cold-weather hunting?
- NiMH loses capacity in cold more noticeably than lithium polymer. The BP37W's chemistry handles cold better, but its 280mAh capacity is smaller to start with.
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