What spare battery for a GR IIIx?

[Kenburg]

Could you recommend me a spare battery for the GR IIIx? Best to get a DB-110 or are there good quality 3rd party ones available.
I've had good results with Hahnel batteries in the past.
Would it be worth getting an external charger?
I'm in the UK if that makes a difference availability-wise.
Ta!

 

[Genster]

I have 3 DB-110 batteries

 

[tintifax]

Beside one original battery I use one Patona Premium Series.
Can't see any difference to the original one.
I have been using Patona spare-batteries for about 15 years for different cameras and currently also for my Pen-F
Always without any issues.
I charge all this batteries with the original (Olympus)Charger (or Nikon or whatever) and have never seen any difference to the original ones.

 

[Kenburg]

You don't know the model number for the Patona battery offhand?

 

[tintifax]

There is no dedicated Name on the battery.
Patona premium Series for LI-90B Li-Ion 3.6 V 1100 mAh 4.0 Wh that's all what I can read on the battery itself .. beside "Patona is a registered quality brand ......"
Search "patona Li-90B" or "patona batteriy for Ricoh GR III" than you find it quickly.