Synergy DigitalReplacement Battery, Works with Dogtra BP74T2 Replacement, (Li-Ion, 7.4V, 500 mAh) Battery

Worked great, had to get some double sided tape to hold it in place as the old doublesided tape came off with the old battery. Got a full day out of it and was happy to have a vibrating dog collar again as i've taped over the electrodes.

Should have read other reviews. This is not the battery I thought I was going to get. The dogtra arc runs on 7.4 v 600mAh battery. Replacement was 500. On top of that, the black connection wire wasnt event securely fixed onto the battery so I can't even use it. What a waste.

It was fine, worked as expected

Trash. Buy the battery from Dogtra. Waste of money and arrived considerably later than it should have. Doesn’t hold a charge; it comes fully charged, but once it dies you’re screwed. Absolute waste of money.

This is not 600mAh. It’s 500mAh.