Serviceable battery pack

A battery pack, comprising:

• a housing including a first compartment and a second compartment;
• a positive terminal and a negative terminal, the positive terminal and the negative terminal each externally accessible from the housing and extending into the first compartment;
• and
• a plurality of cell module assemblies (CMAs) received within the second compartment, the plurality of CMAs being electrically coupled to the positive terminal and the negative terminal through a connection extending from the second compartment into the first compartment, wherein the plurality of CMAs each include a plurality of rechargeable lithium-ion battery cells;
• wherein the first compartment is accessible through a first panel that is movably coupled to the housing through a first securing mechanism providing a first level of access;
• and
• wherein the second compartment is accessible through a second panel that is movably coupled to the housing through a second securing mechanism providing a second level of access, wherein the second securing mechanism is different from the first securing mechanism.

A battery pack, comprising:

• a housing including a first compartment and a second compartment;
• a positive terminal and a negative terminal, the positive terminal and the negative terminal each externally accessible from the housing and extending into the first compartment;
• and
• a plurality of cell module assemblies (CMAs) received within the second compartment, the plurality of CMAs being electrically coupled to the positive terminal and the negative terminal through a connection extending from the second compartment into the first compartment, wherein the plurality of CMAs each include a plurality of rechargeable lithium-ion battery cells;
• wherein the first compartment is accessible through a first panel that is movably coupled to the housing through a first securing mechanism providing a first level of access;
• and
• wherein the second compartment is accessible through a second panel that is movably coupled to the housing through a second securing mechanism providing a second level of access, wherein the second level of access is lower than the first level of access.

A battery pack, comprising:

• a housing including a first compartment and a second compartment;
• a positive terminal, a negative terminal and a data connector terminal, the positive terminal, the negative terminal, and the data connector terminal each externally accessible from the housing and extending into the first compartment;
• a plurality of cell module assemblies (CMAs) received within the second compartment, the plurality of CMAs being electrically coupled to the positive terminal and the negative terminal through a physical connection extending from the second compartment into the first compartment, wherein the plurality of CMAs each include a plurality of rechargeable lithium-ion battery cells;
• and
• a battery management system positioned within the housing and coupled to the data connector terminal, wherein the battery management system is configured to communicate externally through the data connector terminal;
• wherein the first compartment is accessible through a first securing mechanism providing a first level of access;
• and
• wherein the second compartment is accessible through a second securing mechanism providing a second level of access, wherein the second level of access is lower than the first level of access.