BiXPower BP90-MAC 99.6Wh External
Rechargeable Battery for Apple MacBook
Portable laptop backup power with
MagSafe and MagSafe 2 compatible connectors
for select older Apple MacBook,
MacBook Air, and MacBook Pro computers.
The BiXPower BP90-MAC is a professional
high-capacity 99.6Wh rechargeable
lithium-ion external battery designed
to extend the operating time of
compatible Apple laptop computers.
It includes special
C28 MagSafe-compatible
and
C38 MagSafe 2-compatible
connector tips, allowing the battery
to provide portable DC power to
supported legacy Apple laptops.
With its 99.6Wh capacity, the BP90-MAC
also falls within the common 100Wh
passenger-aircraft lithium-ion
battery allowance for carry-on baggage,
subject to airline and applicable
transportation requirements.
Product Highlights
-
99.6Wh high-capacity rechargeable
lithium-ion battery
-
Designed for compatible older
Apple MacBook laptops
-
Includes C28 original MagSafe-compatible
connector
-
Includes C38 MagSafe 2-compatible
connector
-
Three convenient power output ports
-
16V constant-voltage laptop output
-
5V USB output for compatible
portable electronics
-
99.6Wh rating is within the usual
100Wh airline carry-on battery limit
-
Compact silver battery enclosure
-
Four-level LED battery indicator
-
Built-in electronic protection
-
One-year limited warranty
MagSafe and MagSafe 2 Compatible Connectors

C28 and C38 connector tips for compatible
older Apple laptop charging ports.
The BP90-MAC package includes two
connector styles for supported
Apple laptop generations.
-
C28:
Designed for compatible older Apple
laptops using the original MagSafe
power connector.
-
C38:
Designed for compatible Apple laptops
using the MagSafe 2 power connector.
The included connector tips provide
a convenient way to connect the
external battery to compatible
MacBook power inputs.
Portable Backup Power for Apple MacBook
BP90-MAC portable rechargeable
battery and MagSafe-compatible
power connection.
Whether you are working remotely,
traveling, attending meetings,
or spending time away from an
electrical outlet, the BP90-MAC
provides an additional source of
rechargeable energy for compatible
older Apple laptop computers.

BP90 external battery with C38
MagSafe 2-compatible connection.
The battery supplies power through
a dedicated DC output cable and
the appropriate MagSafe-compatible
connector tip.

Example of the BP90 external
battery used with a compatible
Apple MacBook computer.
Compatibility Notice:
The BP90-MAC is designed for select
older Apple laptops with original
MagSafe or MagSafe 2 connectors.
It is not directly compatible with
USB-C or MagSafe 3 MacBooks.
Always verify the laptop's required
voltage, power consumption,
and connector before ordering.
99.6Wh High-Capacity Rechargeable Battery
The BP90-MAC has a rated energy
capacity of
99.6 watt-hours (Wh).
At a nominal battery voltage of
11.1V, this is approximately
9,000mAh (9Ah).
Watt-hours measure the total
stored energy and provide a
more meaningful comparison
between laptop batteries
than milliamp-hours alone.
The external battery can help
extend laptop operating time
when used with the computer's
internal battery.
Actual additional runtime depends
on the laptop model, processor
workload, display brightness,
battery condition, and power
conversion efficiency.
Estimated Additional Runtime
The following examples illustrate
possible operating time based on
different average power loads.
Actual results may vary.
Estimates assume approximately
80% of rated battery energy
is delivered to the load.
These are illustrative calculations,
not guaranteed runtime measurements.
Three Convenient Power Output Ports

BP90 battery output ports
for compatible USB and DC-powered devices.
Output Port I: 5V USB Output
Port I provides a 5V USB output
with a maximum current of 2.1A.
This port can power or charge
compatible USB-powered devices,
such as smartphones, music players,
and other small portable electronics,
using the appropriate USB cable.
Output Port II: Nominal 11.1V DC Output
Port II provides direct battery
voltage with a nominal output
of 11.1V.
The actual voltage changes
with the battery charge level,
approximately 9V to 12.8V.
This port can power compatible
portable electronics that accept
the battery's variable voltage range.
Port II is not a constant-voltage
12V output. Do not use it with
equipment that requires a tightly
controlled 12V input.
Output Port III: 16V Constant-Voltage Output
Port III provides a 16V
constant-voltage DC output
for compatible laptop computers.
Use this output with the
appropriate laptop power cable
and C28 or C38 connector tip,
provided the laptop's voltage
and power requirements are compatible.
The output current is limited
by the battery's specifications.
Always confirm that the
connected laptop does not
exceed the supported power rating.
Battery Specifications
Built-In Battery Protection
The BP90 includes electronic
protection circuitry designed
to protect the rechargeable
battery under common abnormal
operating conditions.
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Over-temperature protection
- Short-circuit protection
Use only compatible charging
equipment and avoid exposing
the battery to excessive heat,
water, physical damage,
or short circuits.
Airline Travel: 99.6Wh Battery
Designed Within the Common
100Wh Airline Battery Limit
The BP90-MAC has a rated
capacity of 99.6Wh,
which is below the standard
100Wh threshold for lithium-ion
batteries carried by airline
passengers.
Under U.S. FAA rules,
lithium-ion spare batteries
and power banks rated at
100Wh or less are generally
permitted in carry-on baggage
for personal use without
special airline approval.
-
Carry the BP90-MAC in
cabin baggage only.
-
Do not place the external
battery in checked baggage.
-
Protect the output terminals
against accidental short circuits.
-
Do not travel with a damaged,
swollen, or recalled battery.
-
Check airline and international
requirements before departure.
For official information,
visit the
FAA PackSafe Lithium Battery Guidelines
.
Airline acceptance is subject
to applicable regulations,
battery markings, safety
requirements, and individual
airline policies.
Standard Package Contents

BP90-MAC standard package
with rechargeable battery,
charger, power cables,
and connector accessories.
The standard BP90-MAC package includes:
-
1 × BiXPower BP90 99.6Wh
rechargeable battery
-
1 × Compatible AC battery charger
-
1 × Port I USB power cable
-
1 × Port II DC power cable
-
1 × Port III laptop power cable
-
1 × C28 original
MagSafe-compatible connector tip
-
1 × C38 MagSafe 2-compatible
connector tip
-
1 × M1 connector tip
for compatible older Apple devices
Additional optional accessories
may be available separately.
Package contents may vary
by selected configuration.
How to Charge the BP90 Battery
The supplied compatible AC
battery charger supports
100–240V AC, 50/60Hz
wall power.

Charging the BP90 battery
with a compatible AC charger.
-
Connect the supplied AC battery
charger to the BP90 charging input.
-
Connect the charger to a suitable
AC wall outlet.
-
Allow approximately 4–6 hours
for charging, depending on the
remaining battery level.
-
Check the charging status
according to the charger and
battery indicator instructions.
-
Disconnect the charger after
charging is complete.
The BP90 may also be charged
from a vehicle cigarette lighter
socket using a compatible
optional vehicle charger.
Charging Safety:
Use a charger specifically
compatible with the BP90
lithium-ion battery.
A regular laptop AC-to-DC
power adapter is not necessarily
a suitable battery charger.
How to Connect the Battery to Your MacBook
Step 1: Identify the Laptop Power Connector
Check whether your MacBook
uses the original MagSafe
connector or MagSafe 2.
Select the matching C28
or C38 connector tip.
Step 2: Check the Laptop Input Voltage
Before connecting an external
battery, check the output
voltage of your original
Apple AC power adapter
or the power input information
on the laptop.
The BP90-MAC Port III
provides a 16V constant-voltage
DC output. Verify compatibility
with your laptop's required
input voltage and power rating.
Step 3: Connect the Power Cable
-
Connect the appropriate
C28 or C38 connector tip
to the laptop power cable.
-
Connect the power cable
to BP90 Output Port III.
-
Connect the MagSafe-compatible
tip to the laptop.
-
Verify that the laptop
operates normally.
Important:
The connector must fit correctly,
and the battery output voltage
and available power must be
compatible with the laptop.
Do not connect incompatible
equipment.
Frequently Asked Questions
Can the BP90-MAC be taken on an airplane?
Yes, a properly marked and compliant
99.6Wh lithium-ion battery is
generally within the 100Wh
passenger-airline allowance.
Carry it in cabin baggage,
protect it from short circuits,
and follow airline restrictions.
Will the BP90-MAC work with every MacBook?
No. It is designed for compatible
older MacBooks with original
MagSafe or MagSafe 2 connectors.
USB-C and MagSafe 3 MacBooks
are not directly supported
by the included connector tips.
How much extra runtime can I expect?
Runtime depends on laptop power
consumption. A laptop averaging
20W may receive approximately
four additional hours under
an illustrative 80% usable-energy
assumption. Actual results vary.
Can the BP90 charge a smartphone?
Yes. The 5V USB output can
charge compatible USB-powered
phones and small electronics
using an appropriate cable.
Does the battery have a constant
12V output?
No. Output Port II follows
the battery's cell voltage
and varies approximately
between 9V and 12.8V.
How long does charging take?
Charging typically takes
approximately 4–6 hours
with a compatible charger.
What is the warranty?
The BiXPower BP90-MAC
includes a one-year
limited warranty.
Why Choose BiXPower?
BiXPower specializes in
rechargeable batteries,
portable DC power systems,
battery chargers,
and specialized power
connectors for electronic
equipment.
The BP90-MAC combines a
99.6Wh rechargeable battery
with compatible legacy
Apple laptop connector
accessories in one
portable power solution.
Product Code: BAT-BP90MAC
Battery Capacity: 99.6Wh
Warranty: One Year