Batteries: I have seen the future and the initials are NiZN!!

[brimster]

Recently the rechargeable NiMH factory battery pack for my Minelab Sovereign GT died and I went searching for better options. I avoided the battery pack/alkaline option both because it is very expensive over time and is environmentally unfriendly. I considered the battery pack/NiMH option but was concerned about the lower nominal voltage (1.2V) vs. alkaline (1.5V). Finally, I landed on the battery pack/NiZN battery option. These NiZN batteries are amazing with initial voltage of 1.8V (1.6V nominal) and an mAh rating of 2500 (vs. 1000 for the Minelab rechargeable NiMH battery pack). They even weigh slightly less and are significantly less expensive than the Minelab pack!

At this point, I

 

[slingshot]

And it's a dang shame I couldn't find 9 volt ones.

 

[Rob (IL)]

They have a bad track record with the batteries failing. Also they are not 2500 mah but mwh.

 

[Blank Planet]

work great in my pulse machine love them and have had many many chargers out of them with no problem, put them fresh out of the charger in to my etrac and it did not like them was over the voltage had to let them sit for a day and then they are fine, i have had no problems with them, its old tech and they seemed to have ironed a lot of the bugs out, for me they are winners.

BP

 

[brimster]

Just a quick postscript... While NiZN works great for the Sovereign, they will not work for E-Trac. E-Trac has a voltage limit of 13V. The fully charged NiZN pack is nearly 15V. Just an FYI...