- 3pcs - Solar module Poly 20Wp 36 cells
- 1pc - PWM Solar Charger 12/24 V, 10A, Input 30/50V
- 1pc - Lithium Battery LiFePO4 (12V/20Ah)
This set not include wiring cables and connecotrs!
We recommend buying wiring cables with dimnsion minimum 1,5mm2 and connecotrs XT30 for easy handling.
Technical specification of solar module
A multipurpose solar panel with the high quality polycrystalline solar cell technology
Peak power 20 Wp.
MPP voltage 18,43 V.
MPP current 1,09 A.
Voltage without load 22,2 V.
Short-circuit current 1,16 A.
Efficiency of solar panel 12,13 %.
Height 472 mm.
Width 350 mm.
Depth 18 mm.
. The highest efficiency at direct sunshine. Real yield results: in a cloudy days you may gain about 50% of nominal power. In a rainy day about 10% of the nominal power.
Hardened outer layer protects the panel against hails. Lightweight but sturdy aluminum frame allows for an easy installation. Compact dimensions of the panel make the installation quite easy.
The connection box for attaching cables is on the rear side of the panel. The panel has no cables provided.
This panel is suitable for operation at nominal voltage of 18 V. We recommend to use the MPPT solar controller with 12 V or 24V LiFePO4 batteries for maximum performance.
Technical specification of PWM solar charger
Max. power 240 W.
Weight 0,1 kg.
Max output current 10 A.
Max. input voltage 50 V.
Nominal Voltage 12, 24, V.
Operating temperature -35°C up to 55°C
Small size PWM solar charge regulator 12 V or 24V, 10A made by EPsolar for GWL/Power. This solar controller controls the charging and discharging of the 12V or 24V battery. Suitable for solar panels with max voltage up to 30V (for 12V) or up to 50V for (24V) - the size of the panel max 150Wp (for 12V) or 260Wp (for 24V). The low voltage disconnect function (LVD) will prevent the battery damage from battery over discharging. The low voltage disconnect is at 11V.
Never let the solar charger connected with PV modules and without connected battery same time. Battery connection is mandatory, otherwise you it can damage the charger!
Technical specification of LiFePo4 battery
The monolithic 12V batteries do not have any PCM (any electronics) inside. They consist of finely balanced cells with identical perfomace. The battery must be managed as a single monolithic 12V block.
Nominal voltage of the battery is 12 V and the operational voltage is 11,5 V - 14,8 V.
The maximum charging voltage for initial charge is 15 V.
Recommended subsequent charging is to 14,8 V.
The minimum voltage is 11 V.
Maximum discharge current is 3C continously.
Operating temperature -20°C up to 65°C (discharging)
These batteries are suitable for all traction applications
including electric vehicles. Fully complies also for stationary applications
- such as energy storage.
Also possible to use for starting internal combustion engines.
In the Principles do not require any special electronics for use LP 12V batteries for starting, but it is very important to keep min. and max. voltage, so we recommend using any voltage indication unit, which you will be informed about the current Voltage. This is important especially for frequent starting. We recomend use some simple car Voltmeter.
We offer a indication voltmeter PROM-VOLT
There is no Selfdischarging effect.
Can be recharged at any state of discharge - no memory effect
LiFePO4 is a very safe technology,
not spontaneous combustion, does not react with moisture or with oxygen.
All goods we supply is new direct from the manufacturer.
The batteries are charged conservation.
To be able to use it must first be charged with a low current.
The first charge should not exceed 0.5 C - eg for 20Ah battery is 10A.
FAQ: Initial charging information
For initial charging multiple batteries, must be connected in parallel and the charger outputs should be connected to both ends of the parallel rows of batteries, exactly as it is described here:
FAQ: The initial charging of the number of batteries