I may have an opportunity to buy a Whites TDI SL with two rechargeable NINH batteries, one AA battery pack, jimmy sierra elliptical dual field mono coil, miner john elliptical waterproof coil, 2 large TDI round open coils, and a Whites padded carry bag/case. Would it be worth buying since I have an Equinox 800 and a Teknetics G2? He's asking $750.
Just thought I'd post this.............
I now run a 14.8v pack (4 x 18650 cells in series) which gives me a 7 hour run time. My previous version used loose cells in a holder but I wasn't happy with that.
I made up a battery lead that connects directly to the battery compartment contacts with small brass "screw terminal" connectors soldered with 22AWG wire. A bit fiddly to hook up (long and narrow screw driver needed to tighten the two terminal screws) but very secure and + - leads well apart to avoid a short.
I may put in place a rubber divider that further separates the +- battery contacts but the screw connectors are quite secure.
The battery pack fits in snugly and does not move around at all.
I deliberately made the wire lead long enough so the battery can be unplugged with the excess lead bundled inside the battery compartment.
I thought I'd copy this from my other thread which was buried down on the second page.......is this okay Steve as I don't want to duplicate if unnecessary?
"Just got back from the beach....in one word.........awesome. Some observations;
It is the deepest detector I have ever used on the beach (in the past 25 years) by running the higher voltage pack.
It is the first time I have ever detected (with any detector, including the Minelab PI's) my gold wedding ring at a measured/buried 18" deep.
The US nickel can be heard at 16" in buried wet sand...but with GB OFF. With GB ON it drops to 12"-13" !
My machine is much deeper with GB OFF across all targets.....the rock solid threshold with GB OFF is unbelievable with no loss of sensitivity.
Even with the coil swept through shallow salt water at max gain and 10us......it is so smooth. I don't know how White's have done it....maybe a new batch of the latest flux capacitors......
I tried with GB on but in clean white sand, there was no perfect GB....it was close but just a slight positive signal as the coil was lowered to the ground...but the depth loss was significant with GB on and slight falsing with higher GAIN. None of this is a problem with GB OFF."
PS.......on the real deepies (edge of detectability), there is often a one, two and three way signal but not a four way signal if swept from left,right and up and down.
Well I sat down and re-visited the 4 x 18650 batteries for the TDI Beach Hunter and managed a successful battery boost.....It's a snug fit but went in better than expected.
Now someone probably has another version but here is my Ghetto version !
I needed to remove most of the White's battery holder to reduce the overall height otherwise the 18650 holder would sit on the floor of the White's holder. All that's really needed is the end part to make the electrical contact.
The two outer batteries are quite secure inside the detector as they snug up against the battery compartment housing.
1. Cut down AA White's battery holder
2. Trimmed down 18650 battery holder
3. Removal of two small plastic tabs from the "roof" of the detector's battery compartment (easy and very neat)
4. Bit of hot glue to bring the two holders together but doesn't need to be super strong.
5. Soldering of 18650 leads to contacts on the White's battery holder
And for the record.........the depth increase on my gold ring is a solid 1.5" to 2" over the standard 12v pack. Range has jumped from 14" to 16" with GB off and everything else at max.