Batteries
Five battery packs have been tested with Cerberus. The list below identifies them by their printed labels, reference photo, and product listings.
Tested batteries
All five packs below are confirmed tested with Cerberus. Voltage and capacity figures are the ratings from the pack labels or linked product listings.
| Battery / product link | Nominal voltage | Rated capacity | Identification / notes |
|---|---|---|---|
| PL 606090 pouch | 3.7 V | 4000 mAh | Top; shown installed in the Cerberus enclosure |
| PL 505573 pouch | 3.7 V | 2500 mAh | Lower left |
| PL 695084 pouch | 3.7 V | 3200 mAh | Lower right; additional marking 2803 |
| BATMAX BT-PS3 — PS3 DualShock 3 replacement battery | 3.7 V | 1800 mAh / 6.66 Wh | Small black pack |
| Liter energy battery 306090 | 3.7 V | 3000 mAh | Not pictured in the reference photo |
The Liter energy battery 306090 listing specifies a lithium-polymer pack measuring 3 × 60 × 90 mm (T × W × L), with a two-pin PH connector at 2.0 mm pitch. These dimensions and connector details are seller-listed specifications.
The BATMAX label lists replacement references LIP1359, LIP1859, and LIP1427, with controller compatibility CECHZC2E / CECHZC2U. The pouch packs are identified by the PL codes printed on them.
View the tested battery photo

Measured pack dimensions and enclosure clearances, verified connector pin order, charger settings, measured capacity, and runtime are not yet recorded here. The PL codes on the photographed packs are identifiers, not measured dimensions. Only the 4000 mAh pack is shown installed in this photo.
Should fit — untested candidates
No untested candidates are listed yet. Add a pack here once its dimensions and connector have been compared with the actual enclosure and board.
| Candidate / product link | Published size (T × W × L) | Available clearance | Connector match | Electrical checks remaining | Status |
|---|---|---|---|---|---|
| Awaiting cavity + connector measurements | — | — | — | Chemistry, charge voltage/current, protection | Not evaluated |
“Should fit” describes a dimensional candidate, not a completed Cerberus test.
What is known about battery support
- The onboard MAX17048 fuel gauge is at I²C address
0x36. It provides voltage and an estimated percentage. - The BQ25895 charger shares I²C0: SDA GPIO8, SCL GPIO9, address
0x6A. Its configured charge limits are not yet listed here. - The gauge's reading does not establish charging status. USB attachment alone does not establish charging status either.
- The charger STAT LED is a charge/fault indicator, not a general device power light. LED-off and blinking states have more than one possible cause; inspect charger status before assigning a cause.
The MAX17048 documentation and BQ25895 documentation describe the components. They do not certify a particular battery or the assembled Cerberus board's charging limits.
A useful compatibility record
For each battery, record the manufacturer and exact SKU, product/datasheet link, chemistry/cell count, nominal and maximum charge voltage, rated capacity, allowed charge current, protection board, lead length, connector manufacturer/series/pitch, and a photo identifying positive and negative contacts.
Measure thickness, width, length, cable bend space, and installed clearance. Record board and enclosure revision, charger settings, USB source, firmware, brightness, radio workload, ambient temperature, starting charge, elapsed runtime, and the observed stop condition. Runtime estimates and completed discharge measurements belong in separate fields.
Use the battery compatibility report. An exact model record can be added without publishing device schematics.