KT 50Ah User Manual Download Page 1

Batteries marked with the recycling symbol must be disposed via 
recognized recycling agency. Batteries may be returned to the 
manufacturer by agreement. Used batteries must not be mixed with 
domestic or industrial waste.

CAUTION!

NON-COMPLIANCE WITH MANUAL, REPAIRS MADE WITH OTHER THAN ORIGINAL PARTS

OR UNAUTHORISED REPAIRS RENDER THE WARRANTY VOID.

1. SAFETY NOTES

1.1.GENERAL RULES

1.2. TRANSPORTATION

2.1. EFFICIENCY

1.3. UTILIZATION OF LI-ION BATTERIES

2.2. DIMENSIONS AND WEIGHT 

2.2.GENERAL INFORMATION

Kon-TEC Kraczkowa 1647 37-124 Kraczkowa, Poland

Tel.: +48 695 904 655 email: [email protected]

www.kon-tec.eu

Read this manual before use.

Explosion or fire hazard. Lithium-ion battery ter-

minals are always live. Therefore, it is forbidden to 

place items or tools directly on the li-ion battery.

Too deep discharge is very dangerous and may 

damage the battery. Therefore, it is obligated to 

use internal safety relay.

It is forbidden to open or disassemble li-ion battery. 

The battery contains electrolyte that is very corro-

sive. In normal operating conditions contact with 

electrolyte is impossible. If the battery case is da-

maged, it is forbidden to touch exposed electrolyte 

due to corrosive effects.

Never short circuit positive (+) and negative (-) pole of the battery!

Wear protective eye-glasses and clothing during 

using the li-ion battery.
Any uncovered battery parts or material such as 

electrolyte or powder on skin, or eyes must be 

flushed with plenty of clean water immediately. 

Then consult with a doctor. Spillages on clothing 

should be flushed with water

In case of overcharge, over discharge or any 

damage to the battery there may be released dan-

gerous gas compounds.

The battery is heavy. In case of damage or an 

accident it can become explosive. During montage 

or transport ensure proper protection and use 

suitable equipment. Li-ion battery is sensitive to 

shock. Handle with care

1

https://www.kon-tec.eu/batteries/

CAUTION!

 The li-ion battery must be transported in its original
case in upright position. 
 If the battery is transported in packs on pallets and the use of straps
is required, use soft straps to support the load to avoid damage.
It is forbidden to stand below the battery when it is hoisted.

Always handle the battery with handles, never the terminals!

Lithium-iron-phosphate (LiFePO4 or LFP) batteries have no memory effect and provide the highest energy density. The self-discharge effect is 
negligible and they have long lifetime. The li-ion battery with iron and phosphate admixtures has the safest cells available on the market. The 
nominal voltage of cell is 3,2 V. Therefore the 12,8 V Li-ion battery consists of 4 cells connected in series. 
The nominal capacity of the battery is:
• 50 Ah  • 75 Ah 

• 100 Ah  • 150 Ah  • 200 Ah 

- Electric vehicles (EV),
- Outboard motors,
- Power source for inverters 12 V-/230 V~,
- Toys.

2.3. APPLICATION

The energy efficiency of the entire cycle of a lithium-ion battery 
(discharge from 100% to 0% and recharge from 0% to 100%) is 92%. 
By comparison, in a lead-acid battery, the energy efficiency is only 
80%. The LiFePO4 battery can be charged and discharged at high 
current levels without loss of capacity and has a very high durability 
(the number of complete charge-discharge cycles while maintaining  
up to 80% of nominal capacity is up to 2000). 
The energy density of the battery reaches over 
120 Wh/kg, which is very desirable and energy efficient. 

Capacity [Ah]

Dimensions [mm]

Weight [kg]

483,5x170x241

19,6

150

308x169x211

260x168x213

196x165,5x175

483,5x170x241

12,5

9,5

5,8

26

100

75

50

200

USER MANUAL

Lithium iron phosphate 

LiFePO4 battery

12,8 V

50Ah

75Ah

100Ah

200Ah

150Ah

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