NTC at LTC4006 charge controller

Hello,

the LTC4006 charge controller for Li-Ion batteries supports a NTC for 
the temperature check of the batterie to be charged. The standard value 
for the NTC in the datasheet is 10k.

Now we have got a ready-made battery equipped with a 300 Ohm NTC.

We expect resistances between ~130 and ~900 Ohm for an allowed 
temperature range for the battery of 0° up to 50°C.

I get the controller working for NTC values down to 220 Ohm, but not 
below.

Has anybody experience with this special configuration?

Thank you in advance!

Klaus