diff --git a/pybamm/models/full_battery_models/base_battery_model.py b/pybamm/models/full_battery_models/base_battery_model.py
index 798d67f48..8851bada0 100644
--- a/pybamm/models/full_battery_models/base_battery_model.py
+++ b/pybamm/models/full_battery_models/base_battery_model.py
@@ -24,7 +24,10 @@ class BaseBatteryModel(pybamm.BaseModel):
     def default_parameter_values(self):
         # Default parameter values, geometry, submesh, spatial methods and solver
         # Lion parameters left as default parameter set for tests
-        input_path = os.path.join(os.getcwd(), "input", "parameters", "lithium-ion")
+        input_path = os.path.join(
+            pybamm.root_dir(),
+            "input", "parameters", "lithium-ion"
+        )
         return pybamm.ParameterValues(
             os.path.join(
                 input_path, "mcmb2528_lif6-in-ecdmc_lico2_parameters_Dualfoil.csv"
@@ -32,7 +35,7 @@ class BaseBatteryModel(pybamm.BaseModel):
             {
                 "Typical current [A]": 1,
                 "Current function": os.path.join(
-                    os.getcwd(),
+                    pybamm.root_dir(),
                     "pybamm",
                     "parameters",
                     "standard_current_functions",
@@ -373,4 +376,3 @@ class BaseBatteryModel(pybamm.BaseModel):
         # Cut-off voltage
         voltage = self.variables["Terminal voltage"]
         self.events["Minimum voltage"] = voltage - self.param.voltage_low_cut
-
diff --git a/pybamm/models/full_battery_models/lead_acid/base_lead_acid_model.py b/pybamm/models/full_battery_models/lead_acid/base_lead_acid_model.py
index b1a0e24a3..4e3680f08 100644
--- a/pybamm/models/full_battery_models/lead_acid/base_lead_acid_model.py
+++ b/pybamm/models/full_battery_models/lead_acid/base_lead_acid_model.py
@@ -22,13 +22,13 @@ class BaseModel(pybamm.BaseBatteryModel):
 
     @property
     def default_parameter_values(self):
-        input_path = os.path.join(os.getcwd(), "input", "parameters", "lead-acid")
+        input_path = os.path.join(pybamm.root_dir(), "input", "parameters", "lead-acid")
         return pybamm.ParameterValues(
             "input/parameters/lead-acid/default.csv",
             {
                 "Typical current [A]": 1,
                 "Current function": os.path.join(
-                    os.getcwd(),
+                    pybamm.root_dir(),
                     "pybamm",
                     "parameters",
                     "standard_current_functions",

Running thermal_lithium_ion example doesn't find parameters
**Describe the bug**
FileNotFoundError: [Errno 2] File b'C:\\Code\\PyBaMM\\examples\\scripts\\input\\parameters\\lithium-ion\\mcmb2528_lif6-in-ecdmc_lico2_parameters_Dualfoil.csv' does not exist: b'C:\\Code\\PyBaMM\\examples\\scripts\\input\\parameters\\lithium-ion\\mcmb2528_lif6-in-ecdmc_lico2_parameters_Dualfoil.csv'

**To Reproduce**
Steps to reproduce the behaviour:
check out master
run example

I think it needs these lines added like the other examples
import os
os.chdir(pybamm.__path__[0]+'/..')
or perhaps the base_battery_model should try to find a file in cwd and if not found go to the root

diff --git a/tests/unit/test_models/test_base_model.py b/tests/unit/test_models/test_base_model.py
index 8f640960f..597f67e75 100644
--- a/tests/unit/test_models/test_base_model.py
+++ b/tests/unit/test_models/test_base_model.py
@@ -2,7 +2,6 @@
 # Tests for the base model class
 #
 import pybamm
-
 import unittest
 
 
@@ -329,7 +328,10 @@ class TestBaseModel(unittest.TestCase):
         }
 
         # Check warning raised
-        self.assertWarns(pybamm.ModelWarning, model.check_well_posedness())
+        # TODO: getting a strange bug here, related to CPython bug here:
+        #    https://bugs.python.org/issue29620
+        # with self.assertWarns(pybamm.ModelWarning):
+        model.check_well_posedness()
 
         # Check None entries have been removed from the variables dictionary
         for key, item in model._variables.items():
@@ -371,6 +373,21 @@ class TestStandardBatteryBaseModel(unittest.TestCase):
         )
         self.assertIsInstance(solver, pybamm.BaseModel)
 
+    def test_default_parameters(self):
+        # check parameters are read in ok
+        model = pybamm.BaseBatteryModel()
+        self.assertEqual(
+            model.default_parameter_values['Reference temperature [K]'], 298.15)
+
+        # change path and try again
+        import os
+        cwd = os.getcwd()
+        os.chdir('..')
+        model = pybamm.BaseBatteryModel()
+        self.assertEqual(
+            model.default_parameter_values['Reference temperature [K]'], 298.15)
+        os.chdir(cwd)
+
 
 if __name__ == "__main__":
     print("Add -v for more debug output")

pip install -e .[dev,docs]
parse_log_pytest
pytest
pytest pytest-cov pytest-xdist
apt-get update apt-get install -y gfortran gcc libopenblas-dev liblapack-dev graphviz
3.6
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
alabaster==0.7.13
anyio==3.6.2
anytree==2.8.0
argon2-cffi==21.3.0
argon2-cffi-bindings==21.2.0
async-generator==1.10
attrs @ file:///opt/conda/conda-bld/attrs_1642510447205/work
autograd==1.6.2
Babel==2.11.0
backcall==0.2.0
bleach==4.1.0
certifi==2021.5.30
cffi==1.15.1
charset-normalizer==2.0.12
comm==0.1.4
contextvars==2.4
coverage==6.2
cycler==0.11.0
dataclasses==0.8
decorator==5.1.1
defusedxml==0.7.1
docutils==0.17.1
entrypoints==0.4
execnet==1.9.0
flake8==5.0.4
future==1.0.0
guzzle-sphinx-theme==0.7.11
idna==3.10
imagesize==1.4.1
immutables==0.19
importlib-metadata==4.2.0
iniconfig @ file:///home/linux1/recipes/ci/iniconfig_1610983019677/work
ipykernel==5.5.6
ipython==7.16.3
ipython-genutils==0.2.0
ipywidgets==7.8.5
jedi==0.17.2
Jinja2==3.0.3
json5==0.9.16
jsonschema==3.2.0
jupyter==1.1.1
jupyter-client==7.1.2
jupyter-console==6.4.3
jupyter-core==4.9.2
jupyter-server==1.13.1
jupyterlab==3.2.9
jupyterlab-pygments==0.1.2
jupyterlab-server==2.10.3
jupyterlab_widgets==1.1.11
kiwisolver==1.3.1
MarkupSafe==2.0.1
matplotlib==3.3.4
mccabe==0.7.0
mistune==0.8.4
more-itertools @ file:///tmp/build/80754af9/more-itertools_1637733554872/work
nbclassic==0.3.5
nbclient==0.5.9
nbconvert==6.0.7
nbformat==5.1.3
nest-asyncio==1.6.0
notebook==6.4.10
numpy==1.19.5
packaging @ file:///tmp/build/80754af9/packaging_1637314298585/work
pandas==1.1.5
pandocfilters==1.5.1
parso==0.7.1
pexpect==4.9.0
pickleshare==0.7.5
Pillow==8.4.0
pluggy @ file:///tmp/build/80754af9/pluggy_1615976315926/work
prometheus-client==0.17.1
prompt-toolkit==3.0.36
ptyprocess==0.7.0
py @ file:///opt/conda/conda-bld/py_1644396412707/work
-e git+https://github.com/pybamm-team/PyBaMM.git@be1c938bb8d128d5d5f808e2b9cc1e687413105b#egg=pybamm
pycodestyle==2.9.1
pycparser==2.21
pyflakes==2.5.0
Pygments==2.14.0
pyparsing @ file:///tmp/build/80754af9/pyparsing_1635766073266/work
pyrsistent==0.18.0
pytest==6.2.4
pytest-cov==4.0.0
pytest-xdist==3.0.2
python-dateutil==2.9.0.post0
pytz==2025.2
pyzmq==25.1.2
requests==2.27.1
scipy==1.5.4
Send2Trash==1.8.3
six==1.17.0
sniffio==1.2.0
snowballstemmer==2.2.0
Sphinx==4.3.2
sphinxcontrib-applehelp==1.0.2
sphinxcontrib-devhelp==1.0.2
sphinxcontrib-htmlhelp==2.0.0
sphinxcontrib-jsmath==1.0.1
sphinxcontrib-qthelp==1.0.3
sphinxcontrib-serializinghtml==1.1.5
terminado==0.12.1
testpath==0.6.0
toml @ file:///tmp/build/80754af9/toml_1616166611790/work
tomli==1.2.3
tornado==6.1
traitlets==4.3.3
typing_extensions @ file:///opt/conda/conda-bld/typing_extensions_1647553014482/work
urllib3==1.26.20
wcwidth==0.2.13
webencodings==0.5.1
websocket-client==1.3.1
widgetsnbextension==3.6.10
zipp @ file:///tmp/build/80754af9/zipp_1633618647012/work

name: PyBaMM
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - attrs=21.4.0=pyhd3eb1b0_0
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2021.5.30=py36h06a4308_0
  - importlib_metadata=4.8.1=hd3eb1b0_0
  - iniconfig=1.1.1=pyhd3eb1b0_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.3=he6710b0_2
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - more-itertools=8.12.0=pyhd3eb1b0_0
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - packaging=21.3=pyhd3eb1b0_0
  - pip=21.2.2=py36h06a4308_0
  - pluggy=0.13.1=py36h06a4308_0
  - py=1.11.0=pyhd3eb1b0_0
  - pyparsing=3.0.4=pyhd3eb1b0_0
  - pytest=6.2.4=py36h06a4308_2
  - python=3.6.13=h12debd9_1
  - readline=8.2=h5eee18b_0
  - setuptools=58.0.4=py36h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - toml=0.10.2=pyhd3eb1b0_0
  - typing_extensions=4.1.1=pyh06a4308_0
  - wheel=0.37.1=pyhd3eb1b0_0
  - xz=5.6.4=h5eee18b_1
  - zipp=3.6.0=pyhd3eb1b0_0
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - alabaster==0.7.13
      - anyio==3.6.2
      - anytree==2.8.0
      - argon2-cffi==21.3.0
      - argon2-cffi-bindings==21.2.0
      - async-generator==1.10
      - autograd==1.6.2
      - babel==2.11.0
      - backcall==0.2.0
      - bleach==4.1.0
      - cffi==1.15.1
      - charset-normalizer==2.0.12
      - comm==0.1.4
      - contextvars==2.4
      - coverage==6.2
      - cycler==0.11.0
      - dataclasses==0.8
      - decorator==5.1.1
      - defusedxml==0.7.1
      - docutils==0.17.1
      - entrypoints==0.4
      - execnet==1.9.0
      - flake8==5.0.4
      - future==1.0.0
      - guzzle-sphinx-theme==0.7.11
      - idna==3.10
      - imagesize==1.4.1
      - immutables==0.19
      - importlib-metadata==4.2.0
      - ipykernel==5.5.6
      - ipython==7.16.3
      - ipython-genutils==0.2.0
      - ipywidgets==7.8.5
      - jedi==0.17.2
      - jinja2==3.0.3
      - json5==0.9.16
      - jsonschema==3.2.0
      - jupyter==1.1.1
      - jupyter-client==7.1.2
      - jupyter-console==6.4.3
      - jupyter-core==4.9.2
      - jupyter-server==1.13.1
      - jupyterlab==3.2.9
      - jupyterlab-pygments==0.1.2
      - jupyterlab-server==2.10.3
      - jupyterlab-widgets==1.1.11
      - kiwisolver==1.3.1
      - markupsafe==2.0.1
      - matplotlib==3.3.4
      - mccabe==0.7.0
      - mistune==0.8.4
      - nbclassic==0.3.5
      - nbclient==0.5.9
      - nbconvert==6.0.7
      - nbformat==5.1.3
      - nest-asyncio==1.6.0
      - notebook==6.4.10
      - numpy==1.19.5
      - pandas==1.1.5
      - pandocfilters==1.5.1
      - parso==0.7.1
      - pexpect==4.9.0
      - pickleshare==0.7.5
      - pillow==8.4.0
      - prometheus-client==0.17.1
      - prompt-toolkit==3.0.36
      - ptyprocess==0.7.0
      - pycodestyle==2.9.1
      - pycparser==2.21
      - pyflakes==2.5.0
      - pygments==2.14.0
      - pyrsistent==0.18.0
      - pytest-cov==4.0.0
      - pytest-xdist==3.0.2
      - python-dateutil==2.9.0.post0
      - pytz==2025.2
      - pyzmq==25.1.2
      - requests==2.27.1
      - scipy==1.5.4
      - send2trash==1.8.3
      - six==1.17.0
      - sniffio==1.2.0
      - snowballstemmer==2.2.0
      - sphinx==4.3.2
      - sphinxcontrib-applehelp==1.0.2
      - sphinxcontrib-devhelp==1.0.2
      - sphinxcontrib-htmlhelp==2.0.0
      - sphinxcontrib-jsmath==1.0.1
      - sphinxcontrib-qthelp==1.0.3
      - sphinxcontrib-serializinghtml==1.1.5
      - terminado==0.12.1
      - testpath==0.6.0
      - tomli==1.2.3
      - tornado==6.1
      - traitlets==4.3.3
      - urllib3==1.26.20
      - wcwidth==0.2.13
      - webencodings==0.5.1
      - websocket-client==1.3.1
      - widgetsnbextension==3.6.10
prefix: /opt/conda/envs/PyBaMM

tests/unit/test_models/test_base_model.py::TestStandardBatteryBaseModel::test_default_parameters
tests/unit/test_models/test_base_model.py::TestBaseModel::test_algebraic_set_get tests/unit/test_models/test_base_model.py::TestBaseModel::test_boundary_conditions_set_get tests/unit/test_models/test_base_model.py::TestBaseModel::test_check_well_posedness_initial_boundary_conditions tests/unit/test_models/test_base_model.py::TestBaseModel::test_check_well_posedness_output_variables tests/unit/test_models/test_base_model.py::TestBaseModel::test_check_well_posedness_variables tests/unit/test_models/test_base_model.py::TestBaseModel::test_initial_conditions_set_get tests/unit/test_models/test_base_model.py::TestBaseModel::test_jac_set_get tests/unit/test_models/test_base_model.py::TestBaseModel::test_model_dict_behaviour tests/unit/test_models/test_base_model.py::TestBaseModel::test_rhs_set_get tests/unit/test_models/test_base_model.py::TestBaseModel::test_update tests/unit/test_models/test_base_model.py::TestBaseModel::test_variables_set_get tests/unit/test_models/test_base_model.py::TestStandardBatteryBaseModel::test_default_solver
pybamm/models/full_battery_models/lead_acid/base_lead_acid_model.py pybamm/models/full_battery_models/base_battery_model.py
pybamm/models/full_battery_models/lead_acid/base_lead_acid_model.py pybamm/models/full_battery_models/base_battery_model.py