| Products > Test Equipment |
| Rechargeable 9V batterries for DMM or Alkaline only? |
| << < (4/9) > >> |
| JenniferG:
Thanks for all the replies. Looks like the UT61EA can handle the rechargeables fine. I'll get the 7 cell instead of 6 cell. With all the data logging I am doing I think the rechargeable perhaps makes sense. The 9V battery 2 days ago read 9.7V and now it is at 9.2V. But I've been running a lot of data logging tests since I wrote my own C++ class to read from it on my Arduino Mini Mega. |
| james_s:
Rechargeable batteries make sense for almost everything. They're not expensive anymore, they don't rapidly self discharge anymore, and they are much less likely to leak. |
| iMo:
I've been using rechargeable 9V battery (NiMH) in my Metex handheld. Mounted a 2.5mm jack socket near the battery bay, and wired a diode and a resistor for external charging. While meter on the desk the battery is trickle charged.. |
| james_s:
--- Quote from: imo on November 24, 2022, 08:15:42 am ---I've been using rechargeable 9V battery (NiMH) in my Metex handheld. Mounted a 2.5mm jack socket near the battery bay, and wired a diode and a resistor for external charging. While meter on the desk the battery is trickle charged.. --- End quote --- Generally speaking I'd say this is a bad idea, it compromises the safety of the meter and invalidates any CAT rating that it has. The battery compartment is part of the safety isolation of most meters. |
| iMo:
--- Quote from: james_s on November 24, 2022, 08:17:14 am --- --- Quote from: imo on November 24, 2022, 08:15:42 am ---I've been using rechargeable 9V battery (NiMH) in my Metex handheld. Mounted a 2.5mm jack socket near the battery bay, and wired a diode and a resistor for external charging. While meter on the desk the battery is trickle charged.. --- End quote --- Generally speaking I'd say this is a bad idea, it compromises the safety of the meter and invalidates any CAT rating that it has. The battery compartment is part of the safety isolation of most meters. --- End quote --- "While meter on the desk and not in use the battery is trickle charged.." And you may create an isolation cover (3D print) for the small 2.5mm socket.. PS: is there a handheld dmm with wireless inductive charger available?? |
| Navigation |
| Message Index |
| Next page |
| Previous page |