In lipo battery industry, normally, battery thickness is no less than 3.0mm as it’s winded by various different layers, which include aluminum folim film, positive plate, negative plate, tabs and separator.
See below anatomical drawing of lithium polymer battery:

Clients need a battery to provide little power but long working time when they design some special applications such as SD card,mini GPS tracker,battery thickness is much smaller than normal battery due to the limited space of their products.
The lipo battery with thickness of lower than 1.5mm is called ultra thin lipo battery.
So far, reliable thinnest rechargeable lipo battery designed and mass-produced by Motoma team is 3.7V LIP094648 85mAh, the battery cell is only 0.9mm, and max thickness of battery pack is 1.1mm, it’s even thinner than a Metro card.

| Battery model | 3.7V LIP094648 85mAh |
| Nominal voltage | 3.7V |
| Nominal capacity | 85mAh |
| Minimum capacity | 85mAh |
| Charging voltage | 4.2V |
| Standard charging current | 17mA (0.2C) |
| End current | 0.85mA (0.01C) |
| Max. charging current | 42.5mA (0.5C) |
| Standard discharging current | 17mA (0.2C) |
| Max. discharging current | 85mA (1C) |
| End voltage of discharge | 3.0V |
| Dimension of cell | 0.9*46*48mm |
| Charging temperature range | 0~45℃ |
| Discharging temperature range | -20~60℃ |
| Connector | Flexible board |
| Protection Circuit Module (PCM) | Overcharge protect,over-discharge protect, over current protect, short-circuit protect |
SD card, mini GPS tracker, Bank card, Smart credit card, OTP card, Power card, Information card, RFID device, GPS, Sensors, Medical device, Mine personnel identification, Wireless asset tracking tags, Smart security cards, Animal identification, Smart lock, Smart watch, Smart glasses etc.

UN38.3, MSDS, IEC62133, CB, KC, BIS, KSE, UL, Reach, RoHS etc.
]]>Heat is the worst enemy of batteries:

Regular lipo battery can meet most applications, the tempearture range is as below:
However, some special applications such as vehicle GPS, vehicle camera face high temperature environment, it’s higher than 60 centigrade in the vehicle in summer, then need the high temperature battery solution.
Motoma develops reliable high temperature battery via using special raw material such as high temperature electrolyte, the battery can be stored in 85 centigrade for 4 hours without any battery damage.
It’s not good for lipo battery if always work in high temperatue environment, so any high temperature applications still need to be carefully handled, for details please contact Motoma team via [email protected].
| Battery model | 7.4V LIP554158 1500mAh |
| Nominal voltage | 7.4V |
| Nominal capacity | 1500mAh |
| Minimum capacity | 1500mAh |
| Charging voltage | 8.4V |
| Standard charging current | 300mA (0.2C) |
| End current | 15mA (0.01C) |
| Max. charging current | 750mA (0.5C) |
| Standard discharging current | 300mA (0.2C) |
| Max. discharging current | 1500mA (1C) |
| End voltage of discharge | 6.0V |
| Dimension of cell | 5.5*41*58mm |
| Charging temperature range | 0~45℃ |
| Discharging temperature range | -20~85℃ |
| Connector | Molex, JST connectors etc |
| Protection Circuit Module (PCM) | Overcharge protect,over-discharge protect, over current protect, short-circuit protect |
| Warranty life | 12 months |
Vehicle GPS, vehicle camera, security monitoring, outdoor lighting, gas boilers, robot etc.

UN38.3, MSDS, IEC62133, CB, KC, BIS, PSE, UL1642, UL2054, Reach, RoHS etc.
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