Batteries

Does anyone know what kind of single RECHARGABLE battery it would take to replace two cr2032 3 volt lithium batteries. This is for a dog collar. It uses two of theies batteries a week. Should have bought the rechargable model. I'm well over the extra amount of money that I thought Iwas saving for the rechargable model. Never buy a dog collar that takes replacable 3volt lithium batteries.

You could go with the Li2032 which are Lithium Ion rechargeable, not to be confused with Lithium, which is not rechargeable.
Your Online Source For 2 Pcs LIR2032 3.6v Li-Ion Rechargeable Button Cells
Get the proper type charger specifically for LiIon rechargeable batteries or you could damage them. That part is important! Do not use NiCad nor NiMh type chargers.

Radio Shack also carries the Lithium Ion rechargeable LiR2032
Dantona LIR2032 3.6V/40mAh Li-ion Rechargeable Coin Cell - RadioShack.com


CR2032 equivalents: BR2032, KL2032, L2032, KCR2032, E-CR2032, ECR2032, KECR2032, 5004LC