You need an extra battery pack.

需要备用电池。

This car has quite a large battery pack.

这辆车有一个相当大的电池组。

Today, a battery pack can cost more than $10,000.

如今，一个电池组件的价格可能超过1万美元。

I'm charging my phone without any wires or a battery pack.

我不用任何电线或电池组就能给手机充电。

This new battery pack is lasting four to five days for me.

这个新电池组对我来说可以用四五天。

So everything back up and there's a battery pack in it.

然后一切恢复正常，里面还有个电池组。

The other part is a battery pack. The battery produces the electric signals.

另一部分是个电池组，电池能产生电信号。

They also added 16 Tesla battery packs weighing a total of about 363 kilograms.

他们还增加了16个特斯拉电池组，总重量约为363公斤。

One of the most expensive components of the electric car is its battery pack.

电动汽车最昂贵的部件之一是电池组。

The investment will be used to produce seats, battery packs, bumpers and other parts for Volvo.

这笔投资将用于为沃尔沃生产座椅、电池组、保险杠和其他零部件。

For $35, you get a short power cable and this strap which has space for a battery pack.

只要花35美元，你就可以得到一根短电缆线和这条带子，它有足够的空间放一个电池组。

However, the device must be plugged into the wall or battery pack and there is no standalone use.

但是，该设备必须插入墙壁或电池组，并且不能单独使用。

He used battery packs, a motor and parts from a Tesla Model S that had been in a crash.

他使用了出事故的特斯拉Model S的电池组、发动机和零件。

This battery pack has a longer lifespan and a higher power density – which makes them ideal for powering a vehicle.

这种电池组具有更长的使用寿命和更高的功率密度，这使它们成为驱动汽车的理想选择。

They developed an experimental power supply, called the UrJar, consisting of reusable lithium ion cells salvaged from three-year-old laptop battery packs.

他们开发了一种名为UrJar的实验性质的电源，它是由用时3年的笔记本电脑回收的可重复使用锂离子电池组成。

Some parts of the car will be first connected to a large battery pack and then added to the overall structure.

汽车的一些部件将首先连接到一个大电池组，然后添加到整体结构中。

Then, that electricity travels all the way back to the battery pack and is stored so that you can use it later!

然后，电流一路回到电池组并储存起来，以便以后使用。

So it's a lot of stationary battery packs.

所以这是很多固定电池组。

Most cobalt goes into the battery packs which power smartphones, tablets and laptops.

大多数钴进入为智能手机、平板电脑和笔记本电脑供电的电池组。

Do you see a battery pack on this? - No.

你看到上边有电池吗 -没有。