XTAR BC4 Brand New 1.5V Li-ion Battery Charger

21 posts / 0 new
Last post
xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen
XTAR BC4 Brand New 1.5V Li-ion Battery Charger

When it comes to 1.5V batteries, everyone will immediately think of the most common AA and AAA batteries. These are disposable Alkaline batteries. Many household and handheld devices have been built to use those cells and voltage of 1.5V, such as remote control, kid’s toys, wireless mouse, wireless microphone, etc.

Alkaline AA/AAA batteries cost-effectively but they have high internal resistance. This reduces output. Therefore they last shorter than the rechargeable cells when used in high drain devices like digital cameras, which means you need to change batteries much more frequently. Therefore, many people want to know “can I use 1.2V batteries instead of 1.5V?”. Yes, you can do it. The Alkaline battery has a voltage of around 1.5-1.6V but its voltage quickly drops to around 1.25v under actual load, and around 1V when its almost discharged. The voltage output is similar to that of the 1.2V NiMH batteries.

However, you need to face a problem with NiMH rechargeable batteries that if you have a device that requires 4 or more cells in series then it can create a voltage drop due to the low voltage of NiCD / NiMH rechargeable batteries and the device might refuse to run or power on. So the ideal way is to replace alkaline with lithium. XTAR lithium AA batteries produce 1.5 volts, so they can be used to replace any regular alkaline AA units in most cases. Also, XTAR released a new battery charger BC4, which supports charging the 1.5v rechargeable lithium batteries.

What’s the truth about the 1.5V rechargeable lithium batteries? As we all know that Lithium-ion batteries normally operate 3.7V per cell, but XTAR put circuitry inside the cells to reduce the voltage to 1.5 volts. The output of the XTAR 1.5V rechargeable lithium battery is a constant voltage of 1.5V. Therefore, devices such as racing cars, remote controls, electric toys, etc. that use this battery will also maintain stable performance.

XTAR BC4 battery charger is the best partner of the 1.5V rechargeable lithium battery. It can charge 4 pieces of batteries at a time. It uses a constant voltage method with charging current 500mAh. The input port is the popular USB-C with current up to 5V 2A.

The BC4 uses independent four-bay circuit and supports mix-charging of 1.5V Li-ion, and 1.2V Ni-MH/Ni-CD batteries. It intelligently detects the battery type, battery quantity, and input power, and then select the optimal charging strategy to ensure the maximum output power and higher charging efficiency. So with XTAR BC4 charger, all your rechargeable AA/AAA batteries can be charged safely.

The size of the XTAR BC4 is L80mm x W75mm x H27mm, which is very small. Therefore, BC4 can behold easily by one hand and put into your pocket, very convenient no matter for daily carry or for outdoor trips.

XTAR BC4 can be also used as a power bank, with output 5V 1A. When your mobile phone is out of power but you have no other charging devices at that time, this function will solve your power needs. Just put four 1.5V rechargeable lithium batteries into the charger, and connect the charger to your mobile phone with a USB cable. If you have no 1.5V cells, the BC4 can also support disposable Alkaline batteries and 1.2V NiMH batteries.

There is another sweet design for BC4. That is the LED lighting. Install four 1.5V Alkaline or rechargeable lithium or 1.2V NiMH batteries into the charger, press and hold the button for 2s can turn on the LED light for close-up search and other emergency use in the darkness.

In summary, if you need many 1.5V batteries in your daily life, and if you are an advocate of environmental protection and cost-saving, why not consider using XTAR BC4 battery charger and XTAR 1.5V rechargeable lithium batteries? You will benefit from them.

====================================================================================

How much do you know about 1.5V Li-ion batteries? Do rechargeable lithium-ion batteries exist in standard sizes like AA, AAA, C or D? Sure thing!! XTAR has released AA and AAA rechargeable lithium-ion battery charger and brand new Li-ion battery that output 1.5 volts.

As we all know that Lithium-ion batteries normally operate 3.7V per cell, but XTAR put circuitry inside the cells to reduce the voltage to 1.5 volts. XTAR new 1.5V Li-ion battery has a capacity of 3300mWh which having a larger capacity than other Ni-MH batteries.

XTAR BC4 applies independent four-slot circuit and supports mix-charging of 1.5V Li-ion, 1.2V Ni-MH and Ni-CD batteries. According to the battery quantity and the input power, it intelligently identifies battery type and matches the optimal charging strategy to ensure the maximum output power and higher charging efficiency.

BC4 intelligently matches the charging mode of the battery according to the type of battery charged. It uses the pulse constant current method to charge the Ni-MH battery and the constant voltage method (current limit 500mA) to charge the 1.5V Li-ion battery, making the battery charging process safe and fast.

Besides, with its tiny size and thin body, BC4 can behold easily by one hand and put into your pocket, it also has both charge and discharge functions, can be your emergency power supply for external devices with Max 5V 2.1A output. Very convenient whether for daily carry or for traveling.

So why choose the BC4 charger? Or why use 1.5v lithium batteries?

Comparing Alkaline Batteries with Lithium Batteries, lithium batteries are last much longer and are much lighter than Alkaline Batteries. What’s more, Lithium batteries perform even in the most extreme temperatures, making lithium batteries perfect for outdoor devices. Lithium batteries operate in extremely cold climates or extremely hot climates where alkaline batteries cease to function. This is a great convenience for portable devices

After inserting four batteries with power into the charger, press and hold the button for 2s can turn on LED emergency light for close-up search and other emergency use in dimly lit environments. BC4 would be your ideal smart Li-ion, Ni-MH & Ni-CD battery charger even. As long as there are AA/AAA batteries, you can use BC4

XTAR products and BC4 are sold at Amazon, eBay, Shopee & Aliexpress. To learn more about BC4, please click: BC4 or visit: www.xtar.cc

Or you could follow our official accounts for more information:

Facebook – https://www.facebook.com/ShenzhenXTAR/
Instagram – https://www.instagram.com/xtar_official/
Twitter – https://twitter.com/ShenzhenXTAR

=============================================================================

Have you experienced your keys dropped in the darkness where there is no lights? With XTAR BC4, it will never happen again!

=============================================================================

Plan trips that maximum space-saving and minimum weight are required? Take BC4! It will save you on vacation and a business trip.

=============================================================================

Exciting new product coming soon! Guess what features it has?
BC4, born for AA/AAA rechargeable batteries, both 1.5V lithium and 1.2V Ni-MH cells.

Edited by: xtarflashlight on 06/09/2020 - 02:27
raccoon city
raccoon city's picture
Online
Last seen: 5 min 55 sec ago
Joined: 10/06/2010 - 02:35
Posts: 17281
Location: रॅकून सिटी Palm Desert CA USA

This should be in the Commercial Sellers' Spot...

Marked as SPAM.

ChrisGarrett
ChrisGarrett's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 02/12/2014 - 22:03
Posts: 1029
Location: Miami, Florida

No desire to get into 1.5v lithium rechargeables, since I have a nice collection of Eneloops.

An answer in search of a problem, IMO.

Chris

kuoh
Offline
Last seen: 1 month 1 week ago
Joined: 03/10/2013 - 12:42
Posts: 565
There are some good applications for this type of batteries, though I haven’t used this brand. I don’t understand why some manufacturers still design battery powered products which can’t function below 1.5V and yet eat them like breakfast. The controllers for my VR headsets are one such example as well as some digital cameras. They go through alkalines like crazy and are very erratic when using nimh. The lion and nizn 1.5V batteries are the only ones which will work reliably. Both types last much longer than alkalines in the controllers, but the nizn seems to self discharge too quickly.

KuoH

ChrisGarrett wrote:
An answer in search of a problem, IMO.
ChrisGarrett
ChrisGarrett's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 02/12/2014 - 22:03
Posts: 1029
Location: Miami, Florida

kuoh wrote:
There are some good applications for this type of batteries, though I haven’t used this brand. I don’t understand why some manufacturers still design battery powered products which can’t function below 1.5V and yet eat them like breakfast. The controllers for my VR headsets are one such example as well as some digital cameras. They go through alkalines like crazy and are very erratic when using nimh. The lion and nizn 1.5V batteries are the only ones which will work reliably. Both types last much longer than alkalines in the controllers, but the nizn seems to self discharge too quickly.

KuoH

ChrisGarrett wrote:
An answer in search of a problem, IMO.

Thanks for the explanation.

I have a digital AC thermostat that uses two AAs as a backup and it doesn’t like Eneloops, so it’s alkaleaks for me, which last a while.

Chris

Paul321
Paul321's picture
Offline
Last seen: 3 weeks 21 hours ago
Joined: 03/07/2015 - 09:44
Posts: 787
Location: Hawleyville, USA

I have a Fenix HL50 which won’t work with Li-ion 14500’s, Alkaline’s and Ni-MH only maybe these would work?

Paul-

flydiver
Offline
Last seen: 12 hours 49 min ago
Joined: 06/19/2013 - 19:16
Posts: 1308
Location: Seattle, WA

These have a step down controller (of course). The 1.5v is maintained quite well (flat discharge curve) but due to the controller and the generated heat they tend to top out at about 1.5A, max. Appliances with high draw won’t like them.
For the right application, they are pretty good. I have about a dozen Tenavolt a year constant use and so far still like them.

They aren’t very cost effective for very low draw uses, but they could work.
They cost more, and some need special charger. Xtar looks like they will. Some brands use mini-USB. Basically you are feeding them USB 5.0v and the internal circuitry controls charge and discharge.

To Air is Human, to Respire….Divine.

wle
wle's picture
Offline
Last seen: 7 hours 23 min ago
Joined: 01/07/2015 - 13:49
Posts: 2567
Location: atlanta ga

I would have to see numbers, like mAH.
and max current.
and cost.

“not afraid of troubles” isn’t enough.

wle

"You never have the wind with you - it's either against you, or you're having a good day."
    Daniel Behrman, "The Man Who Loved Bicycles".
It never gets easy, you just go faster.   
-Greg Lemond.
       ,ø¤º°`°º¤ø¸,ø¤º°`°º¤ø¸,ø¤º°`°º¤ø¸

flydiver
Offline
Last seen: 12 hours 49 min ago
Joined: 06/19/2013 - 19:16
Posts: 1308
Location: Seattle, WA

They are VERY expensive if bought without a special-prohibitive IMO.

I just noticed the Xtar AA claim 3300mWh. I wonder how they are going to ‘pack’ that in there since there has to be control circuitry along with the lithium cell. Seems unlikely.
The Tenavolt AA is 2775mWh. In real life I get about 1500-1600mA.

To Air is Human, to Respire….Divine.

VK-GX
Offline
Last seen: 6 months 7 hours ago
Joined: 10/20/2019 - 01:50
Posts: 12
Location: US

I have 4 Tenavolt AA and found them less useful than my Eneloops especially when the current is larger than 500mA. The constant 1.5V is a plus but it has significant less overall run time than my Eneloop pros.

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen

XTAR B4C

Born for 1.5V Li-ion batteries, perfectly compatible with AA and AAA Ni-MH batteries
· Independent Four-slot, Charges AA and AAA Batteries Simultaneously
· Tiny Size, One-hand Operate
· Type-C Input, USB Output
· LED Light for Emergency Use
· Widely Applicable
· Intelligently Matching Constant Current and Constant Voltage
· Multi-protection functions, physical anti-reverse

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen
raccoon city wrote:

This should be in the Commercial Sellers’ Spot…


Marked as SPAM.

Oops… sorry the wrong place …

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen

ChrisGarrett wrote:
No desire to get into 1.5v lithium rechargeables, since I have a nice collection of Eneloops.

An answer in search of a problem, IMO.

Chris

The weight of the 1.5v lithium battery will be lighter, and it can also be recharged, which is more economical and environmentally friendly.

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen
Paul321 wrote:
I have a Fenix HL50 which won’t work with Li-ion 14500’s, Alkaline’s and Ni-MH only maybe these would work?

This light uses one 3V CR123A Lithium battery or AA (Ni-MH, Alkaline) battery.

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen

wle wrote:
I would have to see numbers, like mAH.
and max current.
and cost.

“not afraid of troubles” isn’t enough.

wle

We will post it later lol

2A
Offline
Last seen: 5 months 1 week ago
Joined: 05/18/2020 - 09:57
Posts: 569
Location: quarantained

interesting product, would be keen to hear/see more reviews on here.

will34
will34's picture
Offline
Last seen: 1 hour 37 min ago
Joined: 12/18/2012 - 00:12
Posts: 4108

These are like the USB rechargeable AA batteries, but without the USB recharge function. What makes this better, higher capacity?

Paul321
Paul321's picture
Offline
Last seen: 3 weeks 21 hours ago
Joined: 03/07/2015 - 09:44
Posts: 787
Location: Hawleyville, USA
xtarflashlight wrote:
Paul321 wrote:
I have a Fenix HL50 which won’t work with Li-ion 14500’s, Alkaline’s and Ni-MH only maybe these would work?

This light uses one 3V CR123A Lithium battery or AA (Ni-MH, Alkaline) battery.

So your 1.5v Li-ion AA size cells won’t work Sad

Paul-

Pete7874
Pete7874's picture
Offline
Last seen: 1 day 5 hours ago
Joined: 11/23/2011 - 16:47
Posts: 3480
Location: USA

xtarflashlight wrote:
wle wrote:
I would have to see numbers, like mAH.
and max current.
and cost.

“not afraid of troubles” isn’t enough.

wle

We will post it later lol


Why did you name it BC4?

You already have another charger on the market with that model name (BC4) which is a completely different charger. Why cause unnecessary confusion?

https://www.aliexpress.com/item/32861097408.html

https://www.illumn.com/batteries-chargers-and-powerpax-carriers/chargers...

xtarflashlight
xtarflashlight's picture
Offline
Last seen: 2 hours 50 min ago
Joined: 01/21/2013 - 21:25
Posts: 219
Location: Shenzhen

The operation and application of BC4

If you use AA/AAA batteries for your EDC flashlights, camera flashes, and other devices, this new product can be really useful.

zeroair
Offline
Last seen: 1 month 1 day ago
Joined: 11/27/2015 - 22:55
Posts: 133

Some of you have wondered how the 1.5V lithium ion cell discharge looks. I haven’t tested this XTAR version, but there’s another brand of the same thing: Tenavolts.

I did test those, and if you’d like to see how the 1.5V holds out, see here:

https://zeroair.org/2019/09/04/nanfu-tenavolt-lithium-ion-aa-cell-review/

Spoiler, the Tenavolt version is very stable at 1.5V, until it’s discharged, at which point it stops all output. Capacity ranges from 1.3Ah at 2A discharge to around 1.9Ah at 0.2A discharge.

I expect the XTAR version to be essentially no different than these Tenavolts.