PJCCS Upgrade and rechargeable batteries

[oxide2k]

Just completed my Quickie  PJCCS Upgrade.  I love it very much!

Now I am thinking about rechargeable batteries for Quickie. I've extensively read though this forum.  One thing I got that it's make more sense to use 9v rechargeable but not D cells? Is that correct?
Would Quickie with PJCCS Upgrade work fine with rechargeables? Do I need to change it?

Is this a good choice?
PowerEx MH-C490F Stealth Two Hour 4 Bank 9V Charger w/ 3 x 9.6V batteries 60$
http://www.amazon.com/Charger-Kit-PowerEx-MH-C490F-batteries/dp/B0010T8GH4/ref=sr_1_9?ie=UTF8&qid=1394048788&sr=8-9&keywords=maha+9+volt+rechargeable+battery
or cheaper solution
Tenergy TN141 2 Bay 9V Smart Charger with 4 pcs 9V 250mah NiMH Rechargeable Batteries $32.99
http://www.amazon.com/Tenergy-Charger-250mah-Rechargeable-Batteries/dp/B0045WGWCE/ref=sr_1_5?ie=UTF8&qid=1394048259&sr=8-5&keywords=9+volt+rechargeable+battery

[Paul Joppa]

D cells are quite reasonable, but you have to search to be sure they are really D cells and not AA or C cells in a larger wrapper.