2 of 2 people found the following review helpful
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This review is from: Tenergy TN141 2 Bay 9V Smart Charger with 4 pcs Centura Low Self-discharge 9V NiMH Rechargeable Batteries (Electronics)
My wife has a metal detecter that uses lot of 9v batteries which can get expensive. These rechargeable batteries have been standing up quite well and will save money in the long run.